Title:

\nSoft gravitational radiation from high energy
collisions: a progress report

Abstract:

\nI will review recen
t developments on soft gravitational radiation from ultra-relativistic col
lisions. Calculations based on recent developments in the eikonal approach
and in soft-graviton theorems will be compared. We find excellent agreeme
nt (in their common region of applicability) and are led to predict an une
xpected bump in the spectrum of the gravitational energy flux at wavelengt
hs comparable to the impact parameter of the collision.

TBA

DTSTART;VALUE=DATE:20190312 DTEND;VALUE=DATE:20190313 SEQUENCE:0 SUMMARY:Masataka Watanabe (IPMU) URL:https://phsites.technion.ac.il/strings/event/masataka-watanabe-ipmu/ END:VEVENT BEGIN:VEVENT UID:1q1eb9cb7bqvkb53qcdkc7u85c@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210323 DTEND;VALUE=DATE:20210324 SEQUENCE:0 SUMMARY:No seminar – elections URL:https://phsites.technion.ac.il/strings/event/no-seminar-elections/ END:VEVENT BEGIN:VEVENT UID:6oimsaf4tjdr7eh28955jeadg6@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210330 DTEND;VALUE=DATE:20210331 SEQUENCE:0 SUMMARY:No seminar – Passover URL:https://phsites.technion.ac.il/strings/event/no-seminar-passover/ END:VEVENT BEGIN:VEVENT UID:7g4bs7qbtmufuafu4usbvaf55m@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210413 DTEND;VALUE=DATE:20210414 SEQUENCE:0 SUMMARY:No seminar – Erev Yom Hazikaron URL:https://phsites.technion.ac.il/strings/event/no-seminar-erev-yom-hazika ron/ END:VEVENT BEGIN:VEVENT UID:72iv4eimbg25u9bschq939higm@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210622 DTEND;VALUE=DATE:20210623 SEQUENCE:0 SUMMARY:No seminar – Strings 2021 URL:https://phsites.technion.ac.il/strings/event/no-seminar-strings-2021-2/ END:VEVENT BEGIN:VEVENT UID:3tken4d7gcn8ukial7qt0t2lvd@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210629 DTEND;VALUE=DATE:20210630 SEQUENCE:0 SUMMARY:No seminar – Strings 2021 URL:https://phsites.technion.ac.il/strings/event/no-seminar-strings-2021/ END:VEVENT BEGIN:VEVENT UID:1nh7ufqe7vqi4om39353tg2im0@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Towards a full solution of large N double-scaled SYK

\nWe show that exact correlation functions (at all energy scales) can be ob tained in double-scaled SYK\, which is the usual SYK model where the numbe r of fermions in the interaction scales as sqrt{N}. This includes the four -point function\, from which corrections to the maximal Lyapunov exponent are calculated. These results are related in the appropriate limit to rece nt results on SYK and the Schwarzian theory. We find indications that the model can be completely solved using symmetry considerations.

DTSTART;TZID=Asia/Jerusalem:20181218T103000 DTEND;TZID=Asia/Jerusalem:20181218T113000 SEQUENCE:0 SUMMARY:Vladimir Narovlansky (WIS) URL:https://phsites.technion.ac.il/strings/event/vladimir-narovlansky-wis-2 / END:VEVENT BEGIN:VEVENT UID:10ih6u54f5p7q20411ff1dlf9q@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: On the phase diagram of SU(N1)XSU(N2) gauge theory wi th bifundamental Fermion.

\nAbstract: We study the phase diagram of SU(N1)XSU(N2) gauge theory with massive bifundamental Fermion. Assuming th at the theory is confining and gapped in the IR\, some constraints that co me from anomalies can be put on the phase diagram as a function of the two theta- angles. We combine these constraints with computations that are va lid in different limits of the parameter space to construct schematically the entire phase diagram.

DTSTART;TZID=Asia/Jerusalem:20181218T120000 DTEND;TZID=Asia/Jerusalem:20181218T130000 SEQUENCE:0 SUMMARY:Avner Karasik (WIS) URL:https://phsites.technion.ac.il/strings/event/avner-karasik-wis/ END:VEVENT BEGIN:VEVENT UID:7km55isgts7gmsl02eqh6sb3nn@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:tropical Geometry\, Five Brane Webs\, and Higgs branches in five dimensions

\nThis talks reviews the recent exciting results on
Higgs branches in

\nfive dimensions – a long standing problem of at l
east 20 years.

\nAfter a long period of neglect\, the structure which
arises from Higgs

\nbranches turns out to be surprising\, rich\, and
full of new physics

\nphenomena.

\nWe study a three parameter f
amily of N=1 supersymmetric SQCD theories

\nin five dimensions\, give
n by the number of colors Nc\, number of

\nflavors Nf\, and Chern-Sim
ons level k. The theory has several dimension

\n1 scales\, given by m
asses and inverse gauge coupling. When all scales

\nare set to zero\,
at a UV fixed point\, the SCFT which arises at the

\norigin of the C
oulomb branch has a particular structure of chiral

\noperators which
form a ring on the Higgs branch. The Higgs branch at

\nfinite couplin
g gets larger\, and an effective description of the Higgs

\nbranch at
infinite coupling in best described by quivers using dressed

\nmonop
ole operators.

\nOf course five brane webs play a central role and le
ad to a beautiful

\npicture which derives and tests these new results
!

“Walking\, weakly first-order phase transitions\, and comple x CFTs”

\nAbstract:

\nAppetizer: Most people have heard that th
e 2d Potts model with Q=5 states has a first order phase transition\, but
not everyone knows that the correlation length at this phase transition is
2500 lattice spacings.

\nWe will review “walking RG” behavior in gau
ge theories and connect it to Type II weak first-order phase transitions i
n statistical physics. Despite appearing in very different systems (QCD be
low the conformal window\, the Potts model\, deconfined criticality) these
two phenomena both imply approximate scale invariance in a range of energ
ies and have the same RG interpretation: a flow passing between pairs of f
ixed point at complex coupling\, dubbed “complex CFTs”. Observables of the
real walking theory are approximately computable by perturbing the comple
x CFTs. The general mechanism will be illustrated by a specific and comput
able example: the two-dimensional Q-state Potts model with Q > 4. Based on
http://arxiv.org/abs/1807.11512 and http://arxiv.org/abs/1808.04380

Title: Solving topological sectors of 3d SCFTs and hologra phy

\nAbstract: 3d superconformal field theories with {cal N} = 4 S USY have two inequivalent 1d topological sectors\, one corresponding to th e Higgs branch and the other to the Coulomb branch. I will explain how to compute all correlation functions in these sectors for 3d gauge theories with matter hypermultiplets. In some cases where the 1d sectors come from 3d theories with holographic duals\, I will provide constructions of 2d b ulk duals of these 1d sectors.

DTSTART;TZID=Asia/Jerusalem:20190115T103000 DTEND;TZID=Asia/Jerusalem:20190115T113000 SEQUENCE:0 SUMMARY:Silviu Pufu (Princeton) URL:https://phsites.technion.ac.il/strings/event/silviu-pufu-princeton/ END:VEVENT BEGIN:VEVENT UID:3kf47drj9hcf7ln6orkpjst59g@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Knots from M-theory

\nAbstract: We identify a s ector of 1/8 BPS surface operators in the 6d (2\,0) theory on S^1*S^5. Upo n KK reduction on the S^1 factor\, they correspond to 1/8 BPS Wilson loops restricted to a great S^3 in the 5d N=2 super-Yang-Mills theory on S^5. W e provide strong evidence for a conjecture that such Wilson loop observabl es are described by an effective 3d Chern-Simons theory on this S^3 with t he level analytically continued to an imaginary value. Thus the correspond ing surface operators in the (2\,0) theory compute topological knot invari ants on S^3. In the large N limit\, from AdS/CFT\, these surface operators correspond to certain calibrated M2 branes in AdS_7*S^4. We compute their renormalized action and find perfect agreement with the effective CS desc ription. Lastly we’ll discuss steps towards proving this conjecture from l ocalization.

DTSTART;TZID=Asia/Jerusalem:20190115T120000 DTEND;TZID=Asia/Jerusalem:20190115T130000 SEQUENCE:0 SUMMARY:Yifan Wang (Princeton) URL:https://phsites.technion.ac.il/strings/event/yifan-wang-princeton/ END:VEVENT BEGIN:VEVENT UID:atf8mhjku6tlpn7lhnqftn5tfk@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20190121T113000 DTEND;TZID=Asia/Jerusalem:20190121T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Iftah Galon\, Title: New Physics at F ASER – ForwArd Search ExpeRiment at the LHC URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-iftah-galon-title-new-physics-at-faser-forward-search-experiment-at-the- lhc-2/ END:VEVENT BEGIN:VEVENT UID:istuk727edv37evk772cmjs6do@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20190128T113000 DTEND;TZID=Asia/Jerusalem:20190128T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Adi Armoni\, Title: Phases of QCD3 an d Duality URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-adi-armoni-title-phases-of-qcd3-and-duality-2/ END:VEVENT BEGIN:VEVENT UID:3jv8etoiokm56kppfpb711pms8@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:From Scattering Amplitudes to Classical Observables

\nI present a formalism for computing classically measurable quantities dire ctly from on-shell quantum scattering amplitudes. I will discuss the ingre dients needed for obtaining the classical result\, and show how to set up the calculation to derive the result efficiently. The formalism is not spe cific to a given theory\, and is ultimately destined to be used for genera l relativity. In this talk\, I will give two examples from spinless scatt ering in electrodynamics: the momentum transfer to next-to-leading order\, and the momentum radiated to leading order.

DTSTART;TZID=Asia/Jerusalem:20190205T103000 DTEND;TZID=Asia/Jerusalem:20190205T113000 SEQUENCE:0 SUMMARY:David Kosower (IPhT) URL:https://phsites.technion.ac.il/strings/event/david-kosower-ipht/ END:VEVENT BEGIN:VEVENT UID:1r9r2b9j1bd8n2mnbl6ntj0m05@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: How to Embrace a Naked Singularity

\nAbstract:
I will use holography to study the vacuum structure of a

\nfour-dimen
sional N=1 supersymmetric QFT\, known as N=1*\, obtained as a

\nsuper
potential mass deformation of N=4 SYM. A central role in this

\ndiscu
ssion is played by a new analytic background of type IIB

\nsupergravi
ty obtained by uplifting the well-known five-dimensional GPPZ

\nsolut
ion. The ten-dimensional solution exhibits a naked singularity

\nwhic
h reflects the IR physics in the gauge theory. I will discuss in

\nde
tail how to probe this naked singularity and the implications for the

\nphysics of the dual gauge theory.

“Spin 2 operators in holographic SCFTS in four and five dime nsions”

DTSTART;TZID=Asia/Jerusalem:20190319T103000 DTEND;TZID=Asia/Jerusalem:20190319T113000 SEQUENCE:0 SUMMARY:Michael Gutperle (UCLA) URL:https://phsites.technion.ac.il/strings/event/michael-gutperle-ucla/ END:VEVENT BEGIN:VEVENT UID:1rhjlltft47c3huh7k3ou9nbg4@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:New 3d N=2 SCFT’s with N^3/2 scaling

\nWe construct se veral novel examples of 3d N=2 models whose free energy scales as N^3/2 at large N. This is the first step towards the identification of field theor ies with an M-theory dual. Furthermore\, we match the volumes extracted fr om the free energy with the ones computed from the Hilbert series. We perf orm a similar analysis for the 4d parents of the 3d models\, matching the volume extracted from the a conformal anomaly to that obtained from the Hi lbert series. For some of the 4d models\, we show the existence of a Sasak i-Einstein metric on the internal space of the candidate type IIB gravity dual.

DTSTART;TZID=Asia/Jerusalem:20190319T120000 DTEND;TZID=Asia/Jerusalem:20190319T130000 SEQUENCE:0 SUMMARY:Marco Fazzi (Technion) URL:https://phsites.technion.ac.il/strings/event/marco-fazzi-technion/ END:VEVENT BEGIN:VEVENT UID:4vk299ji8h8oltj4ogl4d0kpt0@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Hydrodynamics of Entanglement

\nAbstract: The time evo lution of entanglement entropy in highly exited states of chaotic quantum systems provides insight both into the process of thermalization\, and thr ough the gauge/gravity duality into black holes in quantum gravity. Most c onventional methods are not applicable to this problem. In this talk\, I p resent an effective theory for entanglement dynamics akin to hydrodynamics . I derive this theory in the special case of chaotic gauge theories dual to gravity in AdS spacetime\, and present strong evidence that is valid fo r any chaotic system. I discuss the interplay between the effective theory and chaotic operator growth. I conclude with some outstanding problems th is new theory may help to solve.

DTSTART;TZID=Asia/Jerusalem:20190402T103000 DTEND;TZID=Asia/Jerusalem:20190402T113000 SEQUENCE:0 SUMMARY:Mark Mezei (Stony Brook) URL:https://phsites.technion.ac.il/strings/event/mark-mezei-stony-brook/ END:VEVENT BEGIN:VEVENT UID:4l9sobdq37v5dn21qdov0m2t64@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“How to glue a spacetime from entanglement wedges”

\nI f a holographic bulk spacetime is built out of quantum entanglement in the boundary theory\, how do we understand the bulk connection? To inspect th e entanglement structure of a boundary state\, we dissect it into componen ts and look at their quantum correlations. Each boundary component reconst ructs a region of the bulk called entanglement wedge. The entanglement wed ge (and its corresponding component subregion of the boundary) has an inte rnal symmetry called modular flow\, which has two properties that will be useful for our purposes. First\, modular flow is a gauge symmetry because it relates to one another different ways of presenting the same physical s ystem–the entanglement wedge. Second\, modular flow is a generalization of choosing the phase of a pure quantum state in a Hilbert space. When we gl ue together two overlapping entanglement wedges to build a larger spacetim e\, we must specify how to map the observables in the first wedge (present ed in some modular frame–in some gauge) to observables in the second wedge (also presented in some gauge). Thus\, gluing together two component subr egions of the boundary–as well as two entanglement wedges–requires a conne ction that relates their respective modular frames. This connection is ana logous to specifying the phase of a quantum state that evolves under a tim e-dependent Hamiltonian\, that is the Berry phase. I argue that the modula r Berry connection is the boundary origin of the usual\, geometric connect ion in the bulk. I will sketch some subtleties in the formal construction of the modular Berry connection\, give examples and list key questions for the future.

DTSTART;TZID=Asia/Jerusalem:20190402T120000 DTEND;TZID=Asia/Jerusalem:20190402T130000 SEQUENCE:0 SUMMARY:Bartek Czech (Tsinghua) URL:https://phsites.technion.ac.il/strings/event/bartek-czech-tsinghua/ END:VEVENT BEGIN:VEVENT UID:06rtvfg1gouojumh1n7uir3l88@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:The title is “Two dimensional Nearly de Sitter gravity” and the abstract is

\nIn recent years\, there has been a lot of progres s in understanding holography between two dimensional gravity in nearly Ad S and quantum mechanical systems\, such as the Sachdev-Ye-Kitaev model. In this talk I will extend this analysis to two dimensional de Sitter and it s relation to higher dimensional gravity.

DTSTART;TZID=Asia/Jerusalem:20190430T103000 DTEND;TZID=Asia/Jerusalem:20190430T113000 SEQUENCE:0 SUMMARY:Joaquin Turiaci (Santa Barbara) URL:https://phsites.technion.ac.il/strings/event/joaquin-turiaci-santa-barb ara/ END:VEVENT BEGIN:VEVENT UID:43k94p9f8p8pas757ner6n3ng4@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Dualities in 3d N=1 Chern-Simons-Matter Theories

DTSTART;TZID=Asia/Jerusalem:20190430T120000 DTEND;TZID=Asia/Jerusalem:20190430T130000 SEQUENCE:0 SUMMARY:Adar Sharon (Weizmann) URL:https://phsites.technion.ac.il/strings/event/adar-sharon-weizmann/ END:VEVENT BEGIN:VEVENT UID:68sm2cpocgrjgb9l6hh3ib9k6tgmab9ocko3ib9nc4s6achmcgpmadhmco@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20190508T080000 DTEND;TZID=Asia/Jerusalem:20190508T090000 SEQUENCE:0 SUMMARY:יום שלישי מוזיקה URL:https://phsites.technion.ac.il/strings/event/%d7%99%d7%95%d7%9d-%d7%a9% d7%9c%d7%99%d7%a9%d7%99-%d7%9e%d7%95%d7%96%d7%99%d7%a7%d7%94/ END:VEVENT BEGIN:VEVENT UID:3jiht78mdd86hfjdhbergmsncl@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:TBA

DTSTART;TZID=Asia/Jerusalem:20190514T103000 DTEND;TZID=Asia/Jerusalem:20190514T113000 SEQUENCE:0 SUMMARY:Moshe Rozali (UBC) URL:https://phsites.technion.ac.il/strings/event/moshe-rozali-ubc/ END:VEVENT BEGIN:VEVENT UID:7drltp822tv4vjin06ht226609@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Supersymmetric Lifshitz Field Theories

\nAbstra ct: Lifshitz scaling is an anisotropic scaling where time and space scale differently. Quantum field theories that exhibit Lifshitz scale symmetry p rovide a framework for studying low energy systems with an emergent dynami c scaling such as quantum critical points. Introducing supersymmetry to th e Lifshitz algebra leads to a rich structure that is less constrained comp ared to that of relativistic supersymmetry. We construct supersymmetric Li fshitz quantum field theories and study their renormalization properties a nd RG flows. We show that models of Lifshitz supersymmetry that possess a holomorphic structure realize a line of quantum exact Lifshitz fixed point s for various choices of spacetime dimensions and marginal supersymmetric interactions. The presented results are based on two papers.

DTSTART;TZID=Asia/Jerusalem:20190514T120000 DTEND;TZID=Asia/Jerusalem:20190514T130000 SEQUENCE:0 SUMMARY:Avia Raviv-Moshe (TAU) URL:https://phsites.technion.ac.il/strings/event/avia-raviv-moshe-tau/ END:VEVENT BEGIN:VEVENT UID:5n05tksrmqnv7k2ac92uu02q41@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“From 3d dualities to 2d free field correlators and back”

\nDualities give us new perspectives on the dynamics of supersymmetric gauge theories and are valuable tools to explore their strongly coupled p hases. We know different types of dualities such as holographic and IR\, a nd various examples of correspondences relating supersymmetric gauge theor ies to lower-dimensional systems such as 2d conformal field theories or sp in-systems.

\nI will focus on 3d supersymmetric gauge theories and d iscuss a new curious relation between 3d IR dualities and duality identiti es for free field correlators in 2d CFTs.

\nBased on

\n1903. 10817 and 1905.05807

DTSTART;TZID=Asia/Jerusalem:20190521T103000 DTEND;TZID=Asia/Jerusalem:20190521T113000 SEQUENCE:0 SUMMARY:Sara Pasquetti (Milan) URL:https://phsites.technion.ac.il/strings/event/sara-pasquetti-milan/ END:VEVENT BEGIN:VEVENT UID:2ncljed7rimsnafd5q2n2c7sth@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“Correlation functions in some solvable models”

\nabst ract: Certain quantum field theories – often large N theories in lower dim ension – are sufficiently simple that one is able to compute correlation f unctions at strong coupling. We will discuss some new and old examples of such theories\, in particular\, the SYK model\, the ’t Hooft model\, the f ishnet theory\, and matrix quantum mechanics.

DTSTART;TZID=Asia/Jerusalem:20190521T120000 DTEND;TZID=Asia/Jerusalem:20190521T130000 SEQUENCE:0 SUMMARY:Vladimir Rosenhaus (IAS) URL:https://phsites.technion.ac.il/strings/event/vladimir-rosenhaus-ias/ END:VEVENT BEGIN:VEVENT UID:4mqnm7epd8cd64mcl4utoo8k51@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Anomalies in the Space of Coupling Constants

\n
Abstract:

\nIt is customary to couple a quantum system to external cl
assical fields. One application is to couple the global symmetries of the
system (including the Poincare symmetry) to background gauge fields (and
a metric for the Poincare symmetry). Failure of gauge invariance of the p
artition function under gauge transformations of these fields reflects ‘t
Hooft anomalies. It is also common to view the ordinary (scalar) coupling
constants as background fields\, i.e. to study the theory when they are s
pacetime dependent. We will show that the notion of ‘t Hooft anomalies ca
n be extended naturally to include these scalar background fields. Just a
s ordinary ‘t Hooft anomalies allow us to deduce dynamical consequences ab
out the phases of the theory and its defects\, the same is true for these
generalized ‘t Hooft anomalies. Specifically\, since the coupling constan
ts vary\, we can learn that certain phase transitions must be present. We
will demonstrate these anomalies and their applications in simple pedagogi
cal examples in one dimension (quantum mechanics) and in some two\, three\
, and four-dimensional quantum field theories.

Subleading Microstate Counting of AdS_4 Black Hole Entropy

\nI will describe how within eleven dimensional supergravity one ca n compute the logarithmic correction to the Bekenstein-Hawking entropy of certain magnetically charged asymptotically AdS_4 black holes with arbitra ry horizon topology. The result perfectly agrees with the dual field theo ry computation of the topologically twisted index in ABJM theory and in c ertain theories obtained from M5 wrapping a hyperbolic 3-manifold.

DTSTART;TZID=Asia/Jerusalem:20190528T120000 DTEND;TZID=Asia/Jerusalem:20190528T130000 SEQUENCE:0 SUMMARY:Leopoldo Pando Zayas (Michigan) URL:https://phsites.technion.ac.il/strings/event/leopoldo-pando-zayas-michi gan/ END:VEVENT BEGIN:VEVENT UID:0d3grimv9clhcr1veeg0u2scp2@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Sphere partition functions and de Sitter space

\n< p>Abstract: We consider the partition function of quantum fields on the Eu clidean sphere\, and its relation to quantum fields on de Sitter space. We express the sphere partition function in terms of group characters of the de Sitter group\, providing a general expression for arbitrary spin and m ass. We apply our results to a theory with an infinite tower of massless h igher spin fields\, which is the linearised spectrum of Vasiliev theory. DTSTART;TZID=Asia/Jerusalem:20190604T103000 DTEND;TZID=Asia/Jerusalem:20190604T113000 SEQUENCE:0 SUMMARY:Dio Anninos (King’s College London) URL:https://phsites.technion.ac.il/strings/event/dio-anninos-kings-college- london/ END:VEVENT BEGIN:VEVENT UID:661il9skro09b13dbueoi2gj0l@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Neutron star physics from holographic QCD

\nGauge/grav
ity duality can be used to study QCD at high densities and low

\ntemp
eratures where many other theoretical tools do not work. In

\nparticu
lar one may constrain the equation of state of QCD matter in

\nneutro
n star cores\, which currently has large theoretical uncertainties.

\nI will review recent progress on this topic. Bottom-up models which are<
br />\ncarefully fitted to available data suggest that the equation of sta
te is

\nstiff (i.e.\, the speed of sound is high) in the nuclear matt
er phase and

\nsoft (i.e\, the speed of sound is low) in the quark ma
tter phase. The two

\nphases are separated by a strong first order ph
ase transition\, which

\nmakes quark matter cores of neutron stars un
stable. This picture agrees

\nwith current experimental constraints f
rom LIGO/Virgo and from mass

\nmeasurements of neutron star binaries.

A

DTSTART;TZID=Asia/Jerusalem:20190923T113000 DTEND;TZID=Asia/Jerusalem:20190923T133000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Eran Avraham\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-eran-avraham-title-tba-2/ END:VEVENT BEGIN:VEVENT UID:61p6aj8gkuq20b0ov3qic0slrp@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title : Out of time ordered effective dynamics of a Brownian particle

\nAbstract : In this talk I will present the o ut of time ordered dynamics of a Brownian particle interacting with a ther mal bath. To illustrate the features of this effective dynamics\, I will d escribe a simple toy model where the bath comprises of two sets of harmoni c oscillators coupled nonlinearly to the Brownian particle. Beginning with a Schwinger-Keldysh effective action of the particle\, I will demonstrate its duality with a stochastic theory governed by a non-linear Langevin eq uation. This Langevin dynamics or the equivalent Schwinger-Keldysh effecti ve theory is\, however\, inadequate for determining the Out-of-Time-Order Correlators (OTOCs) of the particle.This limitation can be overcome by ex tending the particle’s effective theory to a path integral formalism defin ed on a contour with multiple time-folds. This extension introduces some n ew effective couplings which are determined by the bath’s OTOCs. The coupl ings in this OTO effective theory satisfy some constraints due to microsco pic reversibility and thermality of the bath. I will show that\, from the point of view of the Langevin dynamics\, these constraints lead to a gener alised fluctuation-dissipation relation between a non-Gaussianity in the n oise distribution and a thermal jitter in the particle’s damping coefficie nt.

DTSTART;TZID=Asia/Jerusalem:20191022T103000 DTEND;TZID=Asia/Jerusalem:20191022T113000 SEQUENCE:0 SUMMARY:Soumyadeep Chaudhuri URL:https://phsites.technion.ac.il/strings/event/shlomo-razamat-3/ END:VEVENT BEGIN:VEVENT UID:5lohfit82pof26bdm2p7ak5s03@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: “Integrability from Confinement”

\nAbstract: \n

I will argue that high energy dynamics on the worldsheet of confini
ng strings is integrable and illustrate this point using two examples.

\nThe first is a pure Yang—Mills theory in two spatial dimensions. Ther
e this logic allows one to obtain a prediction for quantum numbers

\nof all glueballs. I will present results of a dedicated lattice simulati
on which confirm this prediction. The second example is an adjoint QCD in
one spatial dimension.

\nThere this logic leads to a “zigzag model”—
a remarkably simple novel integrable relativistic $N$-body system. I will
prove the Liouville integrability

\nof the zigzag model by presenting
an explicit construction of the corresponding conserved charges.

\nT
his model describes the $N$-particle subsector of a $Tbar{T}$-deformed mas
sless fermion and

\nsuggests a natural setting for constructing off-
shell observables in $Tbar{T}$-deformed theories.

A

DTSTART;TZID=Asia/Jerusalem:20191028T113000 DTEND;TZID=Asia/Jerusalem:20191028T133000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Tal Miller\, Title: The conformal man ifold of three dimensional N=4 supersymmetric star-shaped-quiver theories URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-tal-miller-title-the-conformal-manifold-of-three-dimensional-n4-supersym metric-star-shaped-quiver-theories-2/ END:VEVENT BEGIN:VEVENT UID:c7lr0q5jkpkasmvkpblikl4134@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20191104T113000 DTEND;TZID=Asia/Jerusalem:20191104T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Anton Nedelin\, Title: Black holes\, Bethe Ansatz and toric geometry URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-anton-nedelin-title-black-holes-bethe-ansatz-and-toric-geometry-2/ END:VEVENT BEGIN:VEVENT UID:3bcn5en350tbdqdvo164q7f283@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“Holographic order from modular chaos”

DTSTART;TZID=Asia/Jerusalem:20191105T103000 DTEND;TZID=Asia/Jerusalem:20191105T113000 SEQUENCE:0 SUMMARY:Lampros Lamprou (MIT) URL:https://phsites.technion.ac.il/strings/event/sergei-razamat/ END:VEVENT BEGIN:VEVENT UID:0dnlieuv5nge6mpkppdkibq9e7@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Generalised Riemann Hypothesis\, Random Time Series a nd Normal Distributions

\nAbstract: L functions based on Dirichlet c haracters are natural generalizations of the Riemann zeta function: they b oth have series representations and satisfy an Euler product representatio n\, i.e. an infinite product taken over prime numbers. We address the Gen eralized Riemann Hypothesis relative to the non-trivial complex zeros of t he Dirichlet L functions by studying the possibility to enlarge the origin al domain of convergence of their Euler product. This leads us to analyse the asymptotic behaviour of particular series on primes: although determin istic\, these series have pronounced stochastic features which make them a nalogous to random time series. For non-principal characters\, we show tha t\, in view of the Dirichlet theorem on the equidistribution of reduced re sidue classes modulo q and the Lemke Oliver-Soundararajan result on the di stribution of pairs of residues on consecutive primes\, these series prese nt a universal diffusive random walk behavior with critical exponent ½.

DTSTART;TZID=Asia/Jerusalem:20191105T120000 DTEND;TZID=Asia/Jerusalem:20191105T130000 SEQUENCE:0 SUMMARY:Giuseppe Mussardo (SISSA) URL:https://phsites.technion.ac.il/strings/event/giuseppe-mussardo/ END:VEVENT BEGIN:VEVENT UID:198ecp78gsslrm9jmi1ttamt2s@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191110T143000 DTEND;TZID=Asia/Jerusalem:20191110T153000 SEQUENCE:0 SUMMARY:Evyatar Sabag URL:https://phsites.technion.ac.il/strings/event/evyatar-sabag/ END:VEVENT BEGIN:VEVENT UID:ludph463kep00dlkcrf9rivpnc@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20191111T113000 DTEND;TZID=Asia/Jerusalem:20191111T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shira Chapman\, Title: On the Complex ity of Black Holes URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shira-chapman-title-on-the-complexity-of-black-holes-2/ END:VEVENT BEGIN:VEVENT UID:50cs29qr6vkt0gftto13orpqro@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191117T143000 DTEND;TZID=Asia/Jerusalem:20191117T153000 SEQUENCE:0 SUMMARY:Anton Nedelin URL:https://phsites.technion.ac.il/strings/event/anton-nedelin-2/ END:VEVENT BEGIN:VEVENT UID:1o8qrt3ne0e781pgpuv2jjfqbg@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191124T143000 DTEND;TZID=Asia/Jerusalem:20191124T153000 SEQUENCE:0 SUMMARY:Orr Sela URL:https://phsites.technion.ac.il/strings/event/orr-sela/ END:VEVENT BEGIN:VEVENT UID:6krn5vg7gbc9tmbu1rsjob16h4@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20191125T110000 DTEND;TZID=Asia/Jerusalem:20191125T120000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Varun Sethi\, Title: Brane configurat ions and tachyons at finite temperature in dense holographic QCD URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-varun-sethi-title-brane-configurations-and-tachyons-at-finite-temperatur e-in-dense-holographic-qcd-2/ END:VEVENT BEGIN:VEVENT UID:3tikhba10rt873k46c9q7aug78@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:title: N=1 conformal dualities

\nabstract: We consider on one hand the possibility that a supersymmetric N = 1 conformal gauge t heory has a strongly coupled locus on the conformal manifold at which a di fferent\, dual\, conformal gauge theory becomes a good weakly coupled desc ription. On the other hand we discuss the possibility that strongly couple d theories\, e.g. SCFTs in class S\, having exactly marginal N = 1 deforma tions admit a weakly coupled gauge theory description on some locus of the conformal manifold. We present a simple algorithm to search for such dual ities and discuss several concrete examples. In particular we find conform al duals for N = 1 SQCD models with G2 gauge group and a model with SU(4) gauge group in terms of simple quiver gauge theories. We also find conform al weakly coupled quiver theory duals for a variety of class S theories: T 4\, R0\,4\, R2\,5\, and rank 2n Minahan-Nemeschansky E6 theories. Finally we derive conformal Lagrangians for four dimensional theories obtained by compactifying the E-string on genus g > 1 surface with zero flux. The pair s of dual Lagrangians at the weakly coupled loci have different symmetries which are broken on a general point of the conformal manifold. We match t he dimensions of the conformal manifolds\, symmetries on the generic locus of the conformal manifold\, anomalies\, and supersymmetric indices. The s implicity of the procedure suggests that such dualities are ubiquitous.

DTSTART;TZID=Asia/Jerusalem:20191126T103000 DTEND;TZID=Asia/Jerusalem:20191126T113000 SEQUENCE:0 SUMMARY:Shlomo Razamat URL:https://phsites.technion.ac.il/strings/event/shlomo-razamat-5/ END:VEVENT BEGIN:VEVENT UID:01issq4ups20e2mho9vm6anu6t@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Integrability and Renormalization under TT¯

\nA bstract: Smirnov and Zamolodchikov recently introduced a new class of two- dimensional quantum field theories\, defined through a differential change of any existing theory by the determinant of the stress-tensor. From this TT¯ flow equation one can find a simple expression for both the energy sp ectrum and the S-matrix of the TT¯ deformed theories. Our goal is to find the renormalized Lagrangian of the TT¯ deformed theories. In the context o f the TT¯ deformation of an integrable theory\, the deformed theory is als o integrable and\, correspondingly\, the S-matrix factorizes into two-to-t wo S-matrices. One may thus hope to be able to extract the renormalized La grangian from the S-matrix. We do this explicitly for the TT¯ deformation of a free massive scalar\, to second order in the deformation parameter. O nce one has the renormalized Lagrangian one can\, in principle\, compute a ll other observables\, such as correlation functions. We briefly discuss t his\, as well as the relation between the renormalized Lagrangian\, the TT ¯ flow equation\, and the S-matrix.

DTSTART;TZID=Asia/Jerusalem:20191126T120000 DTEND;TZID=Asia/Jerusalem:20191126T130000 SEQUENCE:0 SUMMARY:Vladimir Rosenhaus (IAS) URL:https://phsites.technion.ac.il/strings/event/vladimir-rosenhaus-ias-2/ END:VEVENT BEGIN:VEVENT UID:03q6m5bd1dpgm87asugkv7d9gu@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191201T143000 DTEND;TZID=Asia/Jerusalem:20191201T153000 SEQUENCE:0 SUMMARY:Nele Callebaut URL:https://phsites.technion.ac.il/strings/event/nele-callebaut/ END:VEVENT BEGIN:VEVENT UID:mve1s496edd4nvhb8hdah5alns@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20191202T113000 DTEND;TZID=Asia/Jerusalem:20191202T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shai Chester\, Title: N=2* Free energ y to all orders in 1/N and non-perturbative AdS/CFT URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shai-chester-title-n2-free-energy-to-all-orders-in-1-n-and-non-perturbat ive-ads-cft-2/ END:VEVENT BEGIN:VEVENT UID:0k925r4bs4veatq4bnbs2l3aqe@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191208T143000 DTEND;TZID=Asia/Jerusalem:20191208T153000 SEQUENCE:0 SUMMARY:Paolo Milan URL:https://phsites.technion.ac.il/strings/event/paolo-milan/ END:VEVENT BEGIN:VEVENT UID:efvd92ueriosug4vhmst11ma3c@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20191209T113000 DTEND;TZID=Asia/Jerusalem:20191209T133000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shahar Hadar\, Title: Signatures of c onformal symmetry in black holes URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shahar-hadar-title-signatures-of-conformal-symmetry-in-black-holes-2/ END:VEVENT BEGIN:VEVENT UID:64ngu1ja3huv6c98bm3594421n@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: TTbar-deformed CFT as a non-critical string

\nA bstract:

\nI will present a non-critical world-sheet string theory action as a proposed description of the TTbar deformation of a 2D CFT with general central charge. This talk will be based on 1910.13578.

DTSTART;TZID=Asia/Jerusalem:20191210T103000 DTEND;TZID=Asia/Jerusalem:20191210T113000 SEQUENCE:0 SUMMARY:Nele Callebaut URL:https://phsites.technion.ac.il/strings/event/nele-callebaut-2/ END:VEVENT BEGIN:VEVENT UID:3fm5rkqtvcfj35ddg3m8f6ek2j@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Vector model in higher dimension

\nAbstract: I
will explain why we study UV behaviour of the O(N) vector

\nmodel wit
h quartic interaction in 4 < d < 6 dimensions and present a

\nnumber
of calculations related to the CFT data of the model at the UV

\nfixe
d point.

A

DTSTART;TZID=Asia/Jerusalem:20191223T113000 DTEND;TZID=Asia/Jerusalem:20191223T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Adi Ashkenazi\, Title: Probing ν inte ractions for ν physics URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-adi-ashkenazi-title-probing-%ce%bd-interactions-for-%ce%bd-physics-2/ END:VEVENT BEGIN:VEVENT UID:2qcom6m2v5qogs8oeme4rhe848@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: From Scattering Amplitudes to Gravitational Waves

\nAbstract: The remarkable detection of gravitational waves by the LIG
O/Virgo

\ncollaboration has opened a new window into the cosmos. In
this

\ncolloquium we explain how particle theorists can help out with

\nhigh-precision calculations of effective Hamiltonians for predicti
ng

\ngravitational-wave emission from compact astrophysical objects.<
br />\nWe explain reamarkable adavances in our ability to compute

\ns
cattering amplitudes in quantum gravity based on ideas such as the

\n
duality between color and kinematics\, double-copy relations and

\nge
neralized unitarity. We then show how these ideas can be harnessed

\nusing modern ideas in effective field theory to obtain new and

\ndi
fficult to obtain general relativity corrections to the problem of

\n
black hole or neutron star inspirals.

Title : Chern-Simons-Matter Duality and Large-N Phase Diagra m

\nAbstract : Pure Chern-Simons (CS) theory looks quite boring at a first glance. However\, the theory becomes highly interesting and rich dy namics come out of it once we couple it to dynamical matter fields. It is quite remarkable that the large-N limit of this matter CS theory is exactl y solvable. This led to the understanding of the fact that CS gauged funda mental regular (free) fermion theories and CS gauged fundamental critical (Wilson-Fisher) boson theories are not different but secretly the same the ory\, related by the level-rank duality. In this talk\, I will show the ex tension of this duality when the boson field gets condensed triggering the Higgs mechanism. In the next step\, extending this duality to the regular boson/critical fermion case\, we will compute the exact quantum effective potential of the regular boson theory and explore the large-N phase diagr am of this theory.

DTSTART;TZID=Asia/Jerusalem:20191224T120000 DTEND;TZID=Asia/Jerusalem:20191224T130000 SEQUENCE:0 SUMMARY:Anshuman Dey URL:https://phsites.technion.ac.il/strings/event/anshuman-dey/ END:VEVENT BEGIN:VEVENT UID:43ib2fqrnajdc58l93t6dcec84@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20200112T143000 DTEND;TZID=Asia/Jerusalem:20200112T153000 SEQUENCE:0 SUMMARY:Assaf Lanir URL:https://phsites.technion.ac.il/strings/event/assaf-lanir/ END:VEVENT BEGIN:VEVENT UID:q3piiek1sm09367qt8lupoh8o8@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20200113T113000 DTEND;TZID=Asia/Jerusalem:20200113T133000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Itamar Hason\, Title: Anomaly Matchin g in the Symmetry Broken Phase URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-itamar-hason-title-anomaly-matching-in-the-symmetry-broken-phase-2/ END:VEVENT BEGIN:VEVENT UID:67rgrop9t2s9ubum4918vlmjdh@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“Turbulence\, CFT and Random Geometry”

\nWe propose a
field theory description of steady state incompressible fluid turbulence a
t the inertial range of scales in a general number of space dimensions.

\nThe theory consists of a Kolmogorov linear scaling mean field theory
dressed by a Nambu-Goldstone dilaton mode that induces a random measure on
the inertial range.

\nWe derive a KPZ-type formula for the anomalous
scalings of the velocity structure functions\, the velocity gradients and
the local energy dissipation\, and relate the dimensionless intermittency
parameter to the boundary conformal anomaly.

Title: Exact results for 5d SCFTs with holographic duals in Type IIB

\nAbstract: Five-dimensional superconformal field theories (5d SCFTs) play an interesting role in the general understanding of quantu m field theory. They provide strongly-coupled UV fixed points with remarka ble features for many perturbatively non-renormalizable gauge theories\, a nd upon compactification they provide new insights into lower-dimensional theories. In this talk recent progress in the holographic and large-N fiel d theory understanding of 5d SCFTs engineered by 5-brane webs in Type IIB string theory will be discussed.

DTSTART;TZID=Asia/Jerusalem:20200114T120000 DTEND;TZID=Asia/Jerusalem:20200114T130000 SEQUENCE:0 SUMMARY:Christoph Uhlemann (UCLA) URL:https://phsites.technion.ac.il/strings/event/christoph-uhlemann-ucla/ END:VEVENT BEGIN:VEVENT UID:4njmvhclsiikt1j1chrn95ul87@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20200119T143000 DTEND;TZID=Asia/Jerusalem:20200119T153000 SEQUENCE:0 SUMMARY:Belal Nazzal URL:https://phsites.technion.ac.il/strings/event/belal-nazzal/ END:VEVENT BEGIN:VEVENT UID:cl5c7vjb9nq1e63ib3d095om54@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20200120T113000 DTEND;TZID=Asia/Jerusalem:20200120T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Dmitry Melnikov\, Title: Knots and Qu antum Physics URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-dmitry-melnikov-title-knots-and-quantum-physics-2/ END:VEVENT BEGIN:VEVENT UID:4e3ud2ape0k718ip80nlc3unlh@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20200126T143000 DTEND;TZID=Asia/Jerusalem:20200126T153000 SEQUENCE:0 SUMMARY:Shlomo Razamat URL:https://phsites.technion.ac.il/strings/event/shlomo-razamat-4/ END:VEVENT BEGIN:VEVENT UID:h7jr3adeq84s0m1p00duckovqk@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20200127T113000 DTEND;TZID=Asia/Jerusalem:20200127T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Dean Carmi\, Title: Loop Diagrams in Anti-deSitter Space URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-dean-carmi-title-loop-diagrams-in-anti-desitter-space-2/ END:VEVENT BEGIN:VEVENT UID:3dl6v8jh8etvcthi5jprabqilr@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Branes and the Swampland

\nAbstract: In this ta lk\, I will discuss consistency of N=(1\,0) supergravity theories in 10d a nd in 6d by using 1/2 BPS string probes. Such string probes are expected t o exist due to completeness of the spectrum of charged branes in a gravita tional theory.I will show that some of the theories with N=(1\,0) supersym metry in 10d and 6d\, which are otherwise consistent looking\, belong to t he Swampland by showing that the central charge on the string probes in th ose gravity theories are too small to host unitary representationsof the c urrent algebra for the bulk gauge symmetries.

DTSTART;TZID=Asia/Jerusalem:20200204T103000 DTEND;TZID=Asia/Jerusalem:20200204T113000 SEQUENCE:0 SUMMARY:Hee-Cheol Kim (POSTECH\, Korea) URL:https://phsites.technion.ac.il/strings/event/hee-cheol-kim-postech-kore a/ END:VEVENT BEGIN:VEVENT UID:1qnr4cfj4nefdvve8t19balcen@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:

Title “AdS/CFT at finite string coupling”<
/span>

Abstract

<
span>We consider the S-matrix in Type IIB/IIA string theory\,
and compare it to correlators of the stress tensor multiplet in various h
olographic CFTs. On flat space\, the leading small momentumcorrections to
these S-matrices are protected and known at finite string coupling. At fin
ite string coupling\, Type IIB on AdS_5 x S_5 is
dual to 4dN=4 SYM at large N and finite complexified couplin
g tau\, while Type IIA on AdS_4 x S^7/Z_k is dual to~~ 3d ABJM with Chern-Simons level k at large N and fixed N/k^5. In each
case\, we computethe CFT correlator to several orders in 1/N using supers
ymmetric localization\, and find that it matches the known S-matrix in the
flat space limit\, which is the first non-perturbative (in string couplin
g) check of AdS/CFT. In the Type IIB case\, the 1/N coefficientsare modula
r functions of tau under S-duality\, which receive infinite instanton corr
ections. In the Type IIA case\, the 1/N coefficients receive no instanton
corrections\, and interpolate from M-theory at small k (large string coupl
ing) to Type IIA at large k(weak string coupling)~~

Title: Dynamics near a holographic first order phase transit ion

\nAbstract:

\nIn this talk I will discuss our recent work on time dependent dynamics for theories with a first order phase transitio n using a holographic description. I will make a brief review of our previ ous work on holographic phase separation which leads to a coupleof questio ns. In particular I will analyze the collisions and merging of domains of different phases\, boost invariant evolution and some conclusions for the future study of the dynamics of a confinement-deconfinement transition.

DTSTART;TZID=Asia/Jerusalem:20200211T103000 DTEND;TZID=Asia/Jerusalem:20200211T113000 SEQUENCE:0 SUMMARY:Romuald Janik URL:https://phsites.technion.ac.il/strings/event/romuald-janik/ END:VEVENT BEGIN:VEVENT UID:4ohu1rj7ln09c5jpg751hrmhg0@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The “Hubble Tension”: a growing disagreement between early and late Universe observations

\nAbstract:

\nThere are
two approaches to estimating the current expansion rate of the Universe\,
which is parametrised by the Hubble constant H0. One attempts to measure i
t directly (the most famous example of which relies on calibrating a dista
nce ladder towards standard-candletype-Ia supernovae in our local cosmic n
eighbourhood). The other is to predict its value based on information from
the distant early Universe (such as the baryon acoustic oscillation scale
\, which can be extracted from cosmic microwave background measurements)an
d assuming the standard cosmological model\, known as ΛCDM. One of the mos
t pressing mysteries in cosmology today is why H0 measurements based on th
ese two approaches are growing in tension (the most recent assessments are
up to ~5sigma discrepant)\, possiblyhinting at a failure of ΛCDM.

\n
I will describe the current status of different measurements of the expans
ion rate (based on a wide range of observables)\, point out their caveats
and outline their prospects for improvement. From the theoretical point of
view\, I will motivate a usefulway of reframing the tension\, and discuss
the clues we have towards solving it with new physics beyond ΛCDM.

Title: Random boundary geometry and gravity dual of $Tbar{T}
$ deformation

\nAbstract: We study the random geometry approach to th
e $Tbar{T}$ deformation of 2d conformal field theory developed by Cardy an
d discuss its realization in a gravity dual. In this representation the gr
avity dual of the $Tbar{T}$ deformation becomes a straightforward translat
ion of the field theory language and the dual geometry is AdS$_3$ or BTZ b
lack holes without a finite cutoff but instead with random boundary diffeo
morphisms\, reflecting an increase of degrees of freedom in the flow to th
e UV by an irrelevant geometric $Tbar{T}$ operator. We streamline the meth
od of computation and calculate the energy spectrum and the thermal free e
nergy in a manner that can be directly translated into the gravity dual la
nguage. We further generalize this approach to correlation functions and r
eproduce the all-order result with universal logarithmic corrections compu
ted by Cardy in a different method. Thus this version of gravity dual of t
he $Tbar{T}$ deformation works not only for the energy spectrum and the th
ermal free energy but also for correlation functions.

The title: “A new topological symmetry of asymptotically fl at spacetimes”

\nI will show that asymptotically flat spacetimes are invariant\, in addition to the BMS group\, under a new dual supertranslat ion symmetry. The corresponding new conserved charges are akin to the larg e magnetic U(1) charges in QED and they reveal a rich topologicalstructure exhibited by the asymptotic metric as well as by the Hilbert space of asy mptotic states. Among the results that I will describe in this talk are th e construction of a gravitational-magnetic monopole solution analogous to the Wu-Yang monopole in QEDand the discovery of a new gravitational dualit y akin to electric-magnetic duality in field theory.

DTSTART;TZID=Asia/Jerusalem:20200225T113000 DTEND;TZID=Asia/Jerusalem:20200225T123000 SEQUENCE:0 SUMMARY:Uri Kol NYU URL:https://phsites.technion.ac.il/strings/event/uri-kol-nyu/ END:VEVENT BEGIN:VEVENT UID:3238fsfbmi3ucq6t8vgs9kbt1r@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Instantons in five-dimensional O(N) vector models

\nAbstract: In this talk\, I will review the construction of O(N) vec tor models above four dimensions\, and explain why one might think that\, in five dimensions\, there should exist O(N)-invariant CFTs at sufficientl y large N. However\, a closer look at theseconstructions reveals that the CFTs are non-unitary because instanton effects lead to small imaginary pa rts of scaling dimensions and OPE coefficients.

DTSTART;TZID=Asia/Jerusalem:20200317T103000 DTEND;TZID=Asia/Jerusalem:20200317T113000 SEQUENCE:0 SUMMARY:Silviu Pufu\, Princeton (Postponed due to corona) URL:https://phsites.technion.ac.il/strings/event/ramy-brustein-4/ END:VEVENT BEGIN:VEVENT UID:28jg4qsbm6uot5o98p235hb790@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: 5d SCFTs and Graphs

\nAbstract:

\nI will
give an overview of recent progress towards classifying 5d N=1 SCFTs. The
main tool is the realization in terms of M-theory on singular Calabi-Yau t
hree-folds\, however we abstract the information about the UV fixed points
into graphs\, and explain howthese encode RG-flows between 5d SCFTs\, wea
kly coupled descriptions as well as dualities.

Title: 5d SCFTs and Graphs

\nI will give an overview o f recent progress towards classifying 5d N=1 SCFTs. The main tool is the r ealization in terms of M-theory on singular Calabi-Yau three-folds\, howev er we abstract the information about the UV fixed points into graphs\, and explain howthese encode RG-flows between 5d SCFTs\, weakly coupled descri ptions as well as dualities.

DTSTART;TZID=Asia/Jerusalem:20200331T113000 DTEND;TZID=Asia/Jerusalem:20200331T123000 SEQUENCE:0 SUMMARY:Sakura Schafer-Nameki\, Oxford URL:https://phsites.technion.ac.il/strings/event/avner-karasik-cambridge/ END:VEVENT BEGIN:VEVENT UID:527joup135vh5b638j9pt1ids2@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:Continuum Quantum Field Theories for Fractons

\nAbstract: Starting with a lattice system at short distances\, its long-dis tance behavior is captured by a continuum Quantum Field Theory (QFT). Thi s description is universal\, i.e. it is independent of most of the details of the microscopic system. Surprisingly\, certain recently discovered lat tice systems\, and in particular models of fractons\, seem to violate this general dogma. Motivated by this apparent contradiction\, we will presen t exotic continuum QFTs that describe these systems.

\n\nThis will b e a zoom joint seminar. The link will be sent to the regular participants of the joint seminar. Other people who are interested to attend it send a message to

\n DTSTART;TZID=Asia/Jerusalem:20200421T150000 DTEND;TZID=Asia/Jerusalem:20200421T160000 SEQUENCE:0 SUMMARY:Nathan Seiberg\, IAS URL:https://phsites.technion.ac.il/strings/event/nathan-seiberg-ias-2/ END:VEVENT BEGIN:VEVENT UID:d1mnn9k29khmqfogdep0m0ifds@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20200504T113000 DTEND;TZID=Asia/Jerusalem:20200504T123000 LOCATION:https://technion.zoom.us/j/92282641204 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Matti \, Title: Holographic (pinned) stripes and magnetic effects URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-matti-title-holographic-pinned-stripes-and-magnetic-effects-2/ END:VEVENT BEGIN:VEVENT UID:4t6a2ba89bqcu73lthbjp8p30h@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Slava Rychkov (IHES\, Bures-sur-Yvette)

\ntitle:

Supersymmetry and its absence in the Random Field Ising Model.

Ab
stract:

We will discuss the phase transition in the Ising model with
magnetic impurities. By one kind of lore\, this leads to a non-unitary sup
ersymmetric CFT with scalar supercharges (Parisi-Sourlas supersymmetry). B
y further lore\, Parisi-Sourlas SCFTin D dimensions is equivalent to a non
-SUSY CFT in D-2 dimensions. It is known that this story is not fully corr
ect\, but we will put some of it on firmer ground using non-perturbative C
FT methods\, and we will propose a scenario for why the full conjecture is
failing. Joint work with Apratim Kaviraj and Emilio Trevisani.

This will be a zoom joint seminar. The link will be sent to the regular participants of the joint seminar. Other people who ar e interested to attend it send a message to

\n DTSTART;TZID=Asia/Jerusalem:20200505T113000 DTEND;TZID=Asia/Jerusalem:20200505T123000 SEQUENCE:0 SUMMARY:Slava Rychkov\, IHES\, Bures-sur Yvette URL:https://phsites.technion.ac.il/strings/event/slava-rychkov-ihes-ens/ END:VEVENT BEGIN:VEVENT UID:4f0pd6ra7ecda1fq4dahp21n0m@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:title: Holographic Pseudo Entropy

\nabstract: In this
talk\, we will study a generalization of holographic entanglement entro

\npy. This quantity is defined by a mininal area surface in an asymptot
icaly AdS

\n space with Euclidean time-dependence. We will give its C
FT counterpart\, which

\n we call pseudo entropy. We will also provid
e quantum information theoretic in

\nterpretations of this quantity i
n several specific examples of qubit systems\,

\nwhich help us to und
erstand our results of pseudo entropy in CFTs and gravity

\nduals. <
/p>
DTSTART;TZID=Asia/Jerusalem:20200512T110000
DTEND;TZID=Asia/Jerusalem:20200512T120000
SEQUENCE:0
SUMMARY:Tadashi Takayanagi\, YITP Kyoto
URL:https://phsites.technion.ac.il/strings/event/tadashi-takayanagi-yitp-ky
oto/
END:VEVENT
BEGIN:VEVENT
UID:3215e6ltd0htfal4g4q6sjlo0p@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:

title: “Holographic renormalization group flows on curved ma nifolds and F-theorems”

\n\nAbstract: Holographic RG flows will be studied where the QFT is both on flat and curved manifolds\, and their ge neral structure will be analyzed.

\nQuantum phase transitions driven by curvature will be found and studied.

\nThe results will be used to propose new F-functions in 3 dimensions that may be generalizable also to higher dimensions.

\n\nThis will be a zoom joint seminar. The lin k will be sent to the regular participants of the joint seminar. Other pe ople who are interested to attend it send a message to

\n DTSTART;TZID=Asia/Jerusalem:20200519T110000 DTEND;TZID=Asia/Jerusalem:20200519T120000 SEQUENCE:0 SUMMARY:Elias Kiritsis\, Crete U.\, APC Paris URL:https://phsites.technion.ac.il/strings/event/elias-kiritsis-crete-u-apc -paris/ END:VEVENT BEGIN:VEVENT UID:0js5bb3a1hutkh6mqkp8p1frmu@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title – An Analytical Toolkit for the S-matrix Bootstrap

\nAbstract – Motivated by the success of the conformal bootstrap\, we re
visit the implications of elastic unitarity and extended analyticity for t
he S-matrix of unitary\, relativistic\, gapped theories in d>2 spacetime d
imensions. We consider two natural expansion of the non-perturbative ampli
tude — the threshold and the large spin expansions\, as well as the relati
on between them. Finally\, we discuss the implication of these to the nume
rical S-matrix bootstrap.

Title: An overview of the Swampland

\nAbstract:The Swampland program aims at distinguishingeffective theo ries which can be consistently completed into quantum gravity in the ultra violet from those which cannot. The main objective of this talk is to pres ent an introduction to the field. I will also present a brief overview of some recentwork which proposes and tests some Swampland constraints\ , specifically relating to scale separation in anti-deSitter spaces and to the presence of gravitational instanton corrections in super symmetric theories.

\n DTSTART;TZID=Asia/Jerusalem:20200602T113000 DTEND;TZID=Asia/Jerusalem:20200602T123000 SEQUENCE:0 SUMMARY:Eran Palti BGU\, MPI Munich URL:https://phsites.technion.ac.il/strings/event/eran-palti-bgu-mpi-munich/ END:VEVENT BEGIN:VEVENT UID:13pdh3246k1ndvcu5iu869db9f@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title
:\n

Color Con
finement and Bose-Einstein Condensation\n

\n

Abstract: \n

We argue that partially-confined\, partial
ly-deconfined phase\, in which SU(M) subgroup of SU(N) gauge group deconfi
nes\, exists between completely confined phase and completely deconfinedph
ases. In the weak-coupling regime\, we describe this phase analytically\,
by using the techniques developed by Aharony and collaborators in 2003. (I
f time permits\, we show the evidence at strong coupling as well\, by usin
g the Monte Carlo method.) Based on this”partial confinement” picture\, we
propose a unified description of color confinement in the large-N gauge t
heory and Bose-Einstein condensation (BEC) in the system of identical boso
ns. Indistinguishability associated with the symmetry group — SU(N) in gau
getheory\, and S_N permutations in the system of identical bosons — is cru
cial for the formation of the condensed (confined) phase. We relate standa
rd criteria\, based on off-diagonal long range order (ODLRO) for BEC and t
he Polyakov loop for gauge theory. Theconstant offset of the distribution
of the phases of the Polyakov loop corresponds to ODLRO. This viewpoint ma
y have implications for confinement at finite N\, and for quantum gravity
via gauge/gravity duality.
DTSTART;TZID=Asia/Jerusalem:20200609T113000
DTEND;TZID=Asia/Jerusalem:20200609T123000
SEQUENCE:0
SUMMARY:Masanori Hanada\, ( Southampton U.\, Surrey U.
URL:https://phsites.technion.ac.il/strings/event/masanori-hanada-southampto
n-u-surrey-u/
END:VEVENT
BEGIN:VEVENT
UID:2qprpg6kb047d0qe9sqop1c9qa@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:**
DTSTART;TZID=Asia/Jerusalem:20200901T150000
DTEND;TZID=Asia/Jerusalem:20200901T160000
SEQUENCE:0
SUMMARY:Zohar Komargodski
URL:https://phsites.technion.ac.il/strings/event/zohar-komargodski-3/
END:VEVENT
BEGIN:VEVENT
UID:7m7knk2dpqb2ie345crbc4403b@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:**

D-instantons perturbation theory

DTSTART;TZID=Asia/Jerusalem:20200616T113000 DTEND;TZID=Asia/Jerusalem:20200616T123000 SEQUENCE:0 SUMMARY:Asoke Sen\, Harish-Chandra Res. Inst URL:https://phsites.technion.ac.il/strings/event/asoke-sen-harish-chandra-r es-inst/ END:VEVENT BEGIN:VEVENT UID:4m7dpk42lfc7qgk2visrvek094@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Boundary Conditions for Chiral Fermions

\nAbstr
act: Iʼll describe boundary conditions for fermions in d=1+1\,

\ndime
nsions\, using the framework of boundary conformal field theory. Iʼll

\nexplain how boundary states are classified by a mod 2 index\, related t
o

\ntheir SPT phase\, describe how one can follow RG flows from one b
oundary

\nstate to another\, and give a novel perspective on the Z_8
classification

\nof d=2+1 SPT phases

Title:

\nModularity of supersymmetric partition functi ons

\nAbstract:

\nIn this talk\, I will present a novel modula
r property of 4d N=1

\nsupersymmetric partition functions of supersym
metric theories with R-symmetry. It is a generalization of the modular inv
ariance of the supersymmetric partitionfunction of two-dimensional supersy
mmetric theories on a torus i.e. of the elliptic genus. It comes from requ
iring consistency of partitionfunctions under gluing and\, among other thi
ngs\, can be used to rederive the supersymmetric Cardy formula for four-di
mensional gaugetheories that has played a key role in computing the entrop
y of supersymmetric black holes.

Title: Deformations of JT Gravity and Matrix Models\,

\n \nAbstract: I will explain how the relation between two-dimensional J T gravity and a matrix model — that is a

\nrandom ensemble of quantu m systems rather than a specific quantum system — can be generalized

\nwhen one perturbs the action of JT gravity to a more generic case. Based on arXiv:2006.13414.

\nSee also arXiv:2006.11317 by Maxfield a nd Turiaci.

\n\nAnybody who is not on the list of the Israel string joint seminar and would like to listen to this seminar send your email to cobi@tauex.tau.ac.il and you will receive the zoom link

DTSTART;TZID=Asia/Jerusalem:20200804T160000 DTEND;TZID=Asia/Jerusalem:20200804T170000 SEQUENCE:0 SUMMARY:Edward Witten URL:https://phsites.technion.ac.il/strings/event/edward-witten/ END:VEVENT BEGIN:VEVENT UID:3ng7jeutgnf09pd29snnkn2l9b@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: “Non-Symmetries and 2-Dimensional QCD” ?Abstract :**\nWe will review the subject of “non-symmetries’’ or “defect symmetrie
s.” We will argue that massless two dimensional QCD admits exponentially m
any such symmetries and we use them to prove deconfinement as well as to c
ompute exactly the tension of thestring in the small mass limit. **

title: “Humanly traversable wormholes”

DTSTART;TZID=Asia/Jerusalem:20200908T160000 DTEND;TZID=Asia/Jerusalem:20200908T170000 SEQUENCE:0 SUMMARY:Juan Maldacena URL:https://phsites.technion.ac.il/strings/event/juan-maldacena/ END:VEVENT BEGIN:VEVENT UID:11k9cfdor28oebf2dbe1ci9jiu@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Partition functions of the tensionless string

\nAbstract: I discuss string theory on AdS3xS3xT4 in the tensionless limit\ ,with one unit of NS-NS flux. This theory is conjectured to be dual to the symmetric product orbifold CFT. I show how to compute the full string par tition function on various locally AdS3 backgrounds\, such as thermal AdS3 \, the BTZ black and conical defects\,and find that it is independent of t he actual background\, but only depends on the boundary geometry. Conseque ntly\, reproducing the boundary partition function does not require a sum over bulk geometries\,but rather agrees with the string partition function on any bulk geometry with the appropriate boundary. I argue that the same mechanism shows the factorization of the bulk partition function when geo metries with disconnected boundaries are considered.

DTSTART;TZID=Asia/Jerusalem:20200915T113000 DTEND;TZID=Asia/Jerusalem:20200915T123000 SEQUENCE:0 SUMMARY:Lorenz Eberhardt URL:https://phsites.technion.ac.il/strings/event/lorenz-eberhardt/ END:VEVENT BEGIN:VEVENT UID:3adpt8bs4gi6lm00l1cipqq752@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:

\nMerging Swampland Conjectures using strings a nd membranes

\nAbstract:

\nIn this talk I will discuss new rela
tions that appear among the Swampland Conjectures when analysing the prope
rties of low codimension BPS objects\, in particular strings and membranes
in N=1 4D EFTs. I will review the state of the art of the Swamplandprogra
m and revisit the most important conjectures\, namely the Weak Gravity Con
jecture (WGC) and the Swampland Distance Conjecture (SDC). Then I will des
cribe how to apply the WGC to low codimension BPS objects by interpreting
the 4d backreaction of these objectsas a classical RG flow of their coupl
ings. Constraints on the UV charges and tensions get then translated to co
nstraints on the axionic kinetic terms and scalar potential of the EFT\, w
hich uncovers new relations among the Swampland Conjectures. In particular
\,we show that the WGC for strings implies the SDC\, by using that infinit
e distance limits can be realised as RG flow endpoints of fundamental axio
nic strings. Similarly\, WGC-saturating membranes generate a scalar potent
ial satisfying the de Sitter Conjecture.

Title:Reggeized scattering\, entanglement and chaos using AdS/CFT\n

ABSTRACT:The eikonalized parton-parton scattering ampl itude at large energy and\n

large impact parameter\, is dominat ed by the exchange of a hyperbolic surface in\n

walled AdS. It s analytical continuation yields a worldsheet instanton that is\n

at the origin of the Reggeization of the amplitude and a thermal-like < /pre>\n

quantum entropy. I will construct the entangled density matri x following from the\n

exchanged surface\, and show that its vo n-Neumann entanglement entropy\n

coincides with its thermal-lik e entropy. The ratio of the entanglement entropy\n

to the tran sverse growth of the exchanged surface is similar to the Bekenstein\n

entropy ratio for a black-hole\, with a natural definition of satu ration\n

and the on-set of chaos in high energy collisions. Th e largest eigenvalues\n

of the entangled density matrix obey a cascade equation in rapidity\,\n

reminiscent of non-linear QCD evolution of wee-dipoles\n

at low-x and weak coupling. We su ggest that the largest eigenvalues\n

describe the probability distributions of wee-quanta at low-x\n

and strong coupling that maybe measurable at present and future hadron-hadron\n

and le pton- hadron colliders.DTSTART;TZID=Asia/Jerusalem:20200929T160000 DTEND;TZID=Asia/Jerusalem:20200929T170000 SEQUENCE:0 SUMMARY:Ismail Zahed URL:https://phsites.technion.ac.il/strings/event/ismail-zahed/ END:VEVENT BEGIN:VEVENT UID:4nq1jjjk2i3p5qm94c8adn9ahh@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:

Title: Landau diagrams in AdS and S-matrices from conformal correlators

\nAbstract: Quantum field theories in AdS generate confo rmalcorrelation functions on the boundary\, and in the limit where AdS is nearly flat one should be able to extract an S-matrix from such correlator s. We discuss a particularly simple position-space procedure to do so. It features a direct map from boundary positionsto (on-shell) momenta and the reby relates cross ratios to Mandelstam invariants. This recipe succeeds i n several examples\, includes the momentum-conserving delta functions\, an d can be shown to imply the two proposals based on Mellin space and on the OPE data.Interestingly the procedure does not always work: the Landau sin gularities of a Feynman diagram are shown to be part of larger regions\, t o be called `bad regions’\, where the flat-space limit of the Witten diagr am diverges. To capture these divergences we introducethe notion of Landau diagrams in AdS. As in flat space\, these describe on-shell particles pro pagating over large distances in a complexified space\, with a form of mom entum conservation holding at each bulk vertex. As an application we recov er the anomalousthreshold of the four-point triangle diagram at the bounda ry of a bad region.

DTSTART;TZID=Asia/Jerusalem:20201006T160000 DTEND;TZID=Asia/Jerusalem:20201006T170000 SEQUENCE:0 SUMMARY:Shota komatsu URL:https://phsites.technion.ac.il/strings/event/shota-komatsu/ END:VEVENT BEGIN:VEVENT UID:7dg17tuu7lqur4ffc8ihuvpi4i@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Boundary conditions for a free scalar field

\nAbstract:

\nIn the first part of the talk\, I will consider the pro blem of classifying the conformal boundary conditions (b.c.) for the free scalar CFT. We will see how to tackle this problem using conformal bootstr ap techniques. In the case of 4d bulk\, I will show ournumerical results\, which feature a “kink” that indicates the existence of a non-trivial “int eracting” b.c.\, besides the obvious Neumann and Dirichlet “free” b.c.’s.< /p>\n

In the second part of the talk\, I will discuss the RG flow of a 4d free scalar field coupled to large N vector models on the boundary. The (classically marginal) coupling involves the boundary mode of the scalar and the O(N) single-trace scalar operator. Iwill explain that the resultin g RG connects two fixed points with bulk and boundary decoupled\, and the local 3d sector is the free vector model in one end\, and the critical one in the other end. This same RG admits two weak-strong dual descriptions\, one fromthe free end\, and one from the critical end.

DTSTART;TZID=Asia/Jerusalem:20201013T113000 DTEND;TZID=Asia/Jerusalem:20201013T123000 SEQUENCE:0 SUMMARY:Lorenzo di Pietro URL:https://phsites.technion.ac.il/strings/event/lorenzo-di-pietro-2/ END:VEVENT BEGIN:VEVENT UID:3se4418jbdb5e3chkq5g0h4ob5@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Quantum Extremal Islands Made Easy\n

Abstra ct: We illustrate the appearance of quantum extremal islands in holographi c setups in higher dimensions. We emphasize the close parallel with the be haviour of holographic entanglement entropy in more familiar settings.

DTSTART;TZID=Asia/Jerusalem:20201020T160000 DTEND;TZID=Asia/Jerusalem:20201020T170000 SEQUENCE:0 SUMMARY:Rob Myers URL:https://phsites.technion.ac.il/strings/event/rob-myers/ END:VEVENT BEGIN:VEVENT UID:ofdhc355fnqpcl47akdlouso98@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20201026T113000 DTEND;TZID=Asia/Jerusalem:20201026T123000 LOCATION:online (zoom) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Bin Wu\, Title: Deciphering the Inner Workings of the Quark-Gluon Plasma URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-bin-wu-title-deciphering-the-inner-workings-of-the-quark-gluon-plasma-2/ END:VEVENT BEGIN:VEVENT UID:4qlp7q9o9h4r8r9ufgqf6s6ngs@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title : Multi-point Bootstrap (and the se
arch for a single open/closed string description of N=4 SYM)

<
span style='font-family: Tahoma\, Geneva\, sans-serif\, serif\, EmojiFont\
;font-size: 16px'>

Title: Flux-based statistical prediction of three-body o
utcomes\n

\n

Abstract: The three-body problem in Newtonian
gravity is one of the oldest and richest problems in physics. Giants work
ed on it and it served as the source of numerous fields in theoretical phy
sics and mathematics including perturbation theory\, topology and chaos. Y
et\, it remains unsolved\, and up to this work\, the associated statistica
l theory was incomplete and flawed. \n

Here\, I present a reduct
ion of the differential decay rate in a factorized form. One factor is the
flux of phase-space volume\, rather than the volume itself which was used
in all previous works\, and it is given in a cutoff-independent closed-fo
rm. The other factor is related to the chaotic absorptivity and to Kirchho
ff’s law of thermal radiation\, also known as greybody radiation. Numerica
l evidence will be presented. I believe that this exact factorization crac
ks the problem and would allow future progress. Based on https:
//arxiv.org/abs/2002.11496
DTSTART;TZID=Asia/Jerusalem:20201103T160000
DTEND;TZID=Asia/Jerusalem:20201103T170000
SEQUENCE:0
SUMMARY:Barak Kol
URL:https://phsites.technion.ac.il/strings/event/barak-kol-2/
END:VEVENT
BEGIN:VEVENT
UID:rt1jrj0rtis4d7plirqmi283v4@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Local seminar
CONTACT:
DESCRIPTION:

A

DTSTART;TZID=Asia/Jerusalem:20201109T113000 DTEND;TZID=Asia/Jerusalem:20201109T123000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Roy Brener\, Title: Estimating the se nsitivity to new light resonances decaying to boosted quark pairs and prod uced in association with a photon in the ATLAS experiment URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-roy-brener-title-estimating-the-sensitivity-to-new-light-resonances-deca ying-to-boosted-quark-pairs-and-produced-in-association-with-a-photon-in-t he-atlas-experiment-2/ END:VEVENT BEGIN:VEVENT UID:6nvnhudfgkgeld3o7m5mu5uc0q@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The Unreasonab le Effectiveness of Higher-Derivative Supergravity in AdS_4 Holography

\n\nAbstract: I will describe the four-derivative correction s to four-dimensional N=2 minimal gauged supergravity and show that they a re controlled by two constants. Interestingly\, the solutions of the equat ions of motion in the two-derivative theory are not modified by the higher -derivative corrections. I will use this to arrive at a general formula fo r the regularized on-shell action for any asymptotically locally AdS_4 sol ution of the theory and show how the higher-derivative corrections affect black hole thermodynamic quantities in a universal way. I will employ thes e results in the context of holography to derive new explicit results for the subleading corrections in the large N expansion of supersymmetric part ition functions on various compact manifolds for a large class of three-di mensional SCFTs arising from M2- and M5-branes. I will also briefly discus s possible extensions and generalizations of these results.

DTSTART;TZID=Asia/Jerusalem:20201110T160000 DTEND;TZID=Asia/Jerusalem:20201110T170000 SEQUENCE:0 SUMMARY:Nikolay Bobev URL:https://phsites.technion.ac.il/strings/event/nikolay-bobev/ END:VEVENT BEGIN:VEVENT UID:09sgiso2nhu4fujvhu54j487hs@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Bar’s journal club

\nTime: Nov 15\, 2020 02:30
PM Jerusalem

Join Zoom Meeting

\nhttps://technion.zoom.us/j/9
9099738727

Meeting ID: 990 9973 8727

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Title: Fine probes of quantum chaos

Abst
ract: Quantum chaotic dynamics is associated to diverse physical phenomena
and signatures. In this talk\, we describe progress in building effective
theories for three of these: the butterfly effect\, the pole skipping phe
nomenon\, and thermalization through the lens of entanglement entropy. We
uncover their interplay by showing that the butterfly velocity plays an im
portant role in all three manifestations of chaos. The discussion is infor
med by results from AdS/CFT and from models of SYK type.

ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Anton’s talk

\nTime: Nov 22\, 2020 02:30 PM Jer
usalem

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\nhttps://technion.zoom.us/j/9641153
3871

Meeting ID: 964 1153 3871

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Title: Gravity from Averaging CFTs

\nAbstract: I will
explore the idea that certain theories of gravity in Anti-de

\nSitter
space are dual to an average over an ensemble of quantum

\ntheories\
, rather than to a specific quantum theory. I will describe

\nan ave
rage over Narain’s family of two-dimensional conformal field

\ntheori
es which describe free bosons on a torus\, and compute the

\npartitio
n function using the Siegel-Weil formula. The result takes

\nthe for
m of a sum over geometries as one would expect in a theory of

\ngravi
ty. But the gravitational theory looks more like a Chern-Simons

\nth
eory than like Einstein gravity.

ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Sebastian’s journal club talk

\nTime: Nov 29\,
2020 02:30 PM Jerusalem

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\nhttps://technion.
zoom.us/j/93922529082

Meeting ID: 939 2252 9082

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ile

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22529082# Israel

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688 Israel

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\nMeeting ID: 939 2
252 9082

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dS

Title: Global symmetry\,
Euclidean gravity\, and the black hole information problem

Abstra ct: In this ta lk I will show how the essential ingredients of recent calculations of the Page curve of an evaporating black hole can be usedto generalize a recent argument against global symmetries beyond the AdS/CFT correspondence to m ore realistic theories of quantum gravity\, illustrating a close connectio n between the absence of global symmetries and a unitary resolution of the black hole informationproblem. I’ll also give several low-dimensional exa mples of quantum gravity theories which do not have a unitary resolution o f the black hole information problem\, and which therefore can and do have global symmetries. Motivated by this discussion\, I’ll conjecturethat in a certain sense Euclidean quantum gravity is equivalent to holography. Ba sed on recent work with Edgar Shaghoulian.

DTSTART;TZID=Asia/Jerusalem:20201201T160000 DTEND;TZID=Asia/Jerusalem:20201201T170000 SEQUENCE:0 SUMMARY:Daniel Harlow URL:https://phsites.technion.ac.il/strings/event/daniel-harlow/ END:VEVENT BEGIN:VEVENT UID:1e6qqnejoo43mp4hsq6oqti9k5@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Paolo’s talk

\nTime: Dec 6\, 2020 02:30 PM Jeru
salem

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\nhttps://technion.zoom.us/j/96588524
118

Meeting ID: 965 8852 4118

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Title: The Statistical Mechanics of Near-BPS Black Holes
\n

\n

Abstract: The status of near extremal black holes in
gravity and string theory has long remained unclear due to the failure of
black hole thermodynamics at low temperatures. Such black holes have an A
dS2 region\, and substantial progress in the last few years has been made
on Jackiw-Teitelboim (JT) dilaton gravity\, which is an effective theory o
f nearly AdS2 spacetimes dual to a 1D “Schwarzian” theory. \n

\n

In this talk\, we will derive and solve an effective theory to descri be 4D flat space black holes which are just above the BPS bound. This theo ry is an N=4 supersymmetric version of the 2D Jackiw-Teitelboim gravity <- > 1D Schwarzian correspondence which we will obtain from nearly AdS2xS2 bl ack holes in 4D N=2 supergravity. Using the Schwarzian description of thes e low temperature black holes\, we can compute the partition function and density of states exactly. Our results verify several conjectures about ne ar-BPS black holes coming from string theory\, including an exact extremal degeneracy agreeing with Bekenstein-Hawking and a thermodynamic mass gap between extremal and near-extremal black holes.

\n\n

Based
on a recent paper (https://arxiv.org/abs/2011.01953) with
MTH\, Luca Iliesiu\, Gustavo Turiaci\, and Wenli Zhao.
DTSTART;TZID=Asia/Jerusalem:20201208T160000
DTEND;TZID=Asia/Jerusalem:20201208T170000
SEQUENCE:0
SUMMARY:Matthew Heydeman
URL:https://phsites.technion.ac.il/strings/event/tba/
END:VEVENT
BEGIN:VEVENT
UID:6eb4m4cq41v726en27m1iq0f49@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:
DTSTART;TZID=Asia/Jerusalem:20201215T160000
DTEND;TZID=Asia/Jerusalem:20201215T170000
SEQUENCE:0
SUMMARY:Hanukah – no seminar
URL:https://phsites.technion.ac.il/strings/event/hanukah-no-seminar/
END:VEVENT
BEGIN:VEVENT
UID:58avs1pm4kc6rgcoquvkrtbqjr@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:

Title: Photon Ring Autocorrelations\n

\n

\n

Abstract: In the presence of a black hole\, light sources connect
to observers along multiple paths. As a result\, observed brightness fluc
tuations must be correlated across different times and positions in black
hole images. Photons that execute multiple orbits around the black hole ap
pear near a critical curve in the observer sky\, giving rise to the photon
ring. In the talk I will describe the structure of a Kerr black hole’s ph
oton ring. I will then discuss a novel observable we have recently propose
d: the two-point correlation function of intensity fluctuations on the rin
g. I will describe its analytic computation within a toy model of stochast
ic emission\, and show that it exhibits a universal\, self-similar pattern
consisting of multiple peaks of identical shape: while the profile of each
peak encodes statistical properties of fluctuations in the source\, the l
ocations and heights of the peaks are determined purely by the black hole
parameters. Measuring these peaks would demonstrate the existence of the p
hoton ring without resolving its thickness\, and would provide estimates o
f black hole mass and spin. I will discuss some prospective extensions and
generalizations\, and argue that with regular monitoring over sufficiently
long timescales\, this measurement could be possible via interferometric
imaging with modest improvements to the Event Horizon Telescope.
DTSTART;TZID=Asia/Jerusalem:20201222T160000
DTEND;TZID=Asia/Jerusalem:20201222T170000
SEQUENCE:0
SUMMARY:Shahar Hadar
URL:https://phsites.technion.ac.il/strings/event/shahar-hadar/
END:VEVENT
BEGIN:VEVENT
UID:kp3vjp55mipf96ktojic984p30@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Journal club
CONTACT:mailto:milan.paolo90@gmail.com
DESCRIPTION:**\n**

ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

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\nhttps://technion.zoom.us/j/9550764
0967

Meeting ID: 955 0764 0967

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ind your local number: https://technion.zoom.us/u/ad23egj816

Title: Thermal order in large N conformal gauge theo
ries

Abstract: Our experience with many physical
systems tells us that usually when a symmetry is spontaneously broken at
low temperatures\, it is restored upon increasing the temperature sufficie
ntly. The abundance of such systems raises the question of whether this i
s a universal feature of all quantum systems. In this talk\, I will presen
t examples of (3+1)-dimensional non-supersymmetric large N gauge theories
which demonstrate violations of the above feature. I will argue that in th
e N tending to infinity limit\, these theories have conformal manifolds wh
ich survive under all loop corrections to the beta functions of the coupli
ngs. I will show that under certain conditions\, a subset of points on suc
h a conformal manifold demonstrates the spontaneous breaking of a global s
ymmetry at all nonzero temperatures. Furthermore\, I will demonstrate that
this symmetry breaking is accompanied by the Higgsing of a subset of gaug
e bosons leading the system to be in a persistent Brout-Englert-Higgs phas
e.

ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nJoin Zoom Meeting

\nhttps://technion.zoom.us/j/9398250
8036

Meeting ID: 939 8250 8036

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\nMeeting ID: 939 8250 8036

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Find your local number: https://technion.zoom.us/u/amf2JHgqX

Title: Comments on holographic description of Narain theories.

Abstract: I will discus
s to what extent holographic description of

Narain theories can mimic the convention
al picture of large c

holography with weakly coupled gravity in the bulk. Namely is
it

possibl
e that the effective IR bulk theory consist of “$U(1)$

gravity” amended with some ad
ditional states. This picture leads to a

hypothesis that in the large central charge
limit density of states of

any Narain theory would be bounded by below by that one
of “$U(1)$

gravity.” This immediately implies maximal value of spectral gap of

primary fields
is $Delta_1=c/(2pi e)$. In the rest of the talk I

will discuss self-consistency of t
his picture using quantum code and

chiral CFTs. First\, I will show the proposed pic
ture yields a new

bound on quantum stabilizer codes\, which is compatible with previ
ously

know
n bounds in the literature. Next\, I will discuss variance of the**density of states\
, which for consistency\, must be vanishingly small inthe large $c$ limit. I will c
onsider ensembles of code and chiral
DTSTART;TZID=Asia/Jerusalem:20210105T160000
DTEND;TZID=Asia/Jerusalem:20210105T170000
SEQUENCE:0
SUMMARY:Anatoly Dymarsky
URL:https://phsites.technion.ac.il/strings/event/anatoly-dymarsky-2/
END:VEVENT
BEGIN:VEVENT
UID:6e2d2odlugrrcajrgll6kpi868@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Journal club
CONTACT:
DESCRIPTION:**

**ayarom@technion.ac.il is inviting you to a scheduled Zoom me
eting.**

Join Zoom Meeting

\nhttps://technion.zoom.us/j/9966058
6760

Meeting ID: 996 6058 6760

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Find your local number: https://technion.zoom.us/u/adEFoxrg2v

Title: Twistors\, Integrability and 4d Chern-Simons Theory\n

\n

\n

Abstract: It has long been known that many classical integrable sy
stems can be obtained as symmetry reductions of the anti-self-dual Yang-Mi
lls equations. Following a suggestion of Costello\, I’ll show that actions
for asd YM arise from holomorphic Chern-Simons theory on twistor space\,
defined with the help of a choice of meromorphic (3\,0)-form. Applying the
symmetry reduction in twistor space\, one instead arrives at the descript
ion of the integrable system in terms of 4d Chern-Simons theory of Costell
o & Yamazaki.
DTSTART;TZID=Asia/Jerusalem:20210112T160000
DTEND;TZID=Asia/Jerusalem:20210112T170000
SEQUENCE:0
SUMMARY:David Skinner
URL:https://phsites.technion.ac.il/strings/event/david-skinner/
END:VEVENT
BEGIN:VEVENT
UID:khdqckmvihhfk6fhk7nbfeuiso@google.com
DTSTAMP:20211203T044955Z
CATEGORIES;LANGUAGE=en-US:Journal club
CONTACT:
DESCRIPTION:

ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nJoin Zoom Meeting

\nhttps://technion.zoom.us/j/9358450
5801

Meeting ID: 935 8450 5801

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ind your local number: https://technion.zoom.us/u/aj7DGg2UG

Title: Frontiers in Positive Geometry.

\nAbstract: In this talk I will describe work in progress connecting scattering amplitude s to amplituhedra and positive geometries in kinematic space. For N=4 SYM in the planar limit\, I will show how the geometry of the amplituhedron n aturally provides a new approach to non-perturbative physics. I will also describe conjectural all-loop order\, non-planar\, non-supersymmetric amp lituhedra for the tr(phi^3) theory–which are new (generally infinite) poly topes attached to any Riemann surface–and show how the connection to posit ive geometry forces the existence of “gravity” in this setting.

DTSTART;TZID=Asia/Jerusalem:20210119T160000 DTEND;TZID=Asia/Jerusalem:20210119T170000 SEQUENCE:0 SUMMARY:Nima Arkani-Hamed URL:https://phsites.technion.ac.il/strings/event/nima-arkani-hamed/ END:VEVENT BEGIN:VEVENT UID:4i7ckucqcb4cd2ko6714hj7b28@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nJoin Zoom Meeting

\nhttps://technion.zoom.us/j/9120584
3934

Meeting ID: 912 0584 3934

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\nMeeting ID: 912 0584 3934

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Find your local number: https://technion.zoom.us/u/acTGBZmez4

Title: Using Soft Hair to Dissolve the Firewall

\nAbst ract: We build on the observation by Hawking\, Perry and Strominger that a global black hole space-time supports a large number of soft hair degrees of freedom to shed new light on the firewall argument by Almheiri\, Marol f\, Polchinski\, and Sully. The soft hair carries a sizable amount of entr opy and is encoded in a transition function that connects the asymptotic a nd near horizon regions. We argue that an infalling observer automaticall y measures the classical value of the soft mode before reachingthe horizon and that this measurement implements a code subspace projection that enab les the reconstruction of interior operators. We use the soft hair dynami cs to introduce an observer dependent notion of the firewall and show that an infalling observer neverencounters a firewall before reaching the sing ularity.

DTSTART;TZID=Asia/Jerusalem:20210126T160000 DTEND;TZID=Asia/Jerusalem:20210126T170000 SEQUENCE:0 SUMMARY:Sabrina Pasterski URL:https://phsites.technion.ac.il/strings/event/sabrina-pasterski/ END:VEVENT BEGIN:VEVENT UID:08b1afn067f5dfgs628qhd7ipm@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20210202T093000 DTEND;TZID=Asia/Jerusalem:20210202T103000 SEQUENCE:0 SUMMARY:No seminars in February – semester break URL:https://phsites.technion.ac.il/strings/event/no-seminars-in-february-se mester-break/ END:VEVENT BEGIN:VEVENT UID:371eeh569c8h4j0ftf9pi9nvg4@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Detecting chaos in hydrodynamics

\nAbstract: H ydrodynamics assumes local equilibration and equilibration assumes ergodic mixing driven by chaos — at least in semi-classical systems. For a generi c such system the timescales of macroscopic thermalization and onset of mi croscopic chaos are very different. Nevertheless\, it is a pillar of Boltz mann transport that long-time equilibration can be computed from microscop ic dynamics. We show how in these systems the two timescales are in fact r elated. Moreover\, we show that a similar connection between both scales s urprisingly also exists in extremely strongly coupled systems through a ph enomenon christened pole-skipping in hydrodynamic response.

DTSTART;TZID=Asia/Jerusalem:20210302T160000 DTEND;TZID=Asia/Jerusalem:20210302T170000 SEQUENCE:0 SUMMARY:Koenraad Schalm URL:https://phsites.technion.ac.il/strings/event/koenraad-schalm/ END:VEVENT BEGIN:VEVENT UID:3udiq1p52gpo5opri53ogth979@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: A CFT Distance Conjecture

\nAbs: We formulate conjectures relating the geometry of conformal manifolds to the spectrum o f local operators in conformal field theories in d>2 spacetime dimensions. We focus on conformal manifolds with limiting points at infinite distance with respect tothe Zamolodchikov metric. Our central conjecture is that a ll theories at infinite distance possess an emergent higher-spin symmetry\ , generated by an infinite tower of currents whose anomalous dimensions va nish exponentially in the distance. Our conjecturesare related to the Dist ance Conjecture in the swampland program. We discuss the supporting eviden ce\, their holographic interpretation\, and implications for superconforma l field theories.

DTSTART;TZID=Asia/Jerusalem:20210309T160000 DTEND;TZID=Asia/Jerusalem:20210309T170000 SEQUENCE:0 SUMMARY:Eric Perlmutter URL:https://phsites.technion.ac.il/strings/event/eric-perlmutter/ END:VEVENT BEGIN:VEVENT UID:1rm2m51f17ek51his6qa45a9p1@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Replica wormhole\, Page curve\, global symmetry and r emnant

\nAbstract:

\nA central dogma in the current theoretical
study of black holes is that they can be viewed as an ordinary quantum sy
stem with large degrees of freedom. In the talk I will argue that replica
wormhole gives strong evidence to the central dogma\, including deriving t
he Page curve of the Hawking radiation\, and an explicit construction of a
complete basis of the black hole interior states. We will also comment on
its relation with violation of global symmetry in quantum gravity.

A

DTSTART;TZID=Asia/Jerusalem:20210322T090000 DTEND;TZID=Asia/Jerusalem:20210322T103000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Sarthak Parikh\, Title: Conformal blo cks from higher-point holography URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-sarthak-parikh-title-conformal-blocks-from-higher-point-holography-2/ END:VEVENT BEGIN:VEVENT UID:s10fhg8ij7ie89f7l1oqn9uvj8@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nJoin Zoom Meeting

\nhttps://technion.zoom.us/j/9530523
4270

Meeting ID: 953 0523 4270

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ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Sebastians journal club

\nTime: Apr 5\, 2021 02
:00 PM Jerusalem

Join Zoom Meeting

\nhttps://technion.zoom.us
/j/94390689273

Meeting ID: 943 9068 9273

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3

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Title: Black hole microstate statistics from Euclidean wormh
oles

\nAbstract: Over the last several years\, it has been shown that
black hole microstate level statistics in various models of 2D gravity ar
e encoded in wormhole amplitudes. These statistics quantitatively agree w
ith predictions of random matrix theory for chaotic quantum systems\; this
behavior is realized since the 2D theories in question are dual to matrix
models. But what about black hole microstate statistics for Einstein gra
vity in 3D and higher spacetime dimensions\, and ultimately in non-perturb
ative string theory? We will discuss progress in these directions. In 3D
\, we compute a wormhole amplitude that encodes the energy level statistic
s of BTZ black holes. In 4D and higher\, we find analogous wormholes whic
h appear to encode the level statistics of small black holes just above th
reshold. Finally\, we study analogous Euclidean wormholes in the low-ener
gy limit of type IIB string theory\; we provide evidence that they encode
the level statistics of small black holes just above threshold in AdS5 x S
5. Remarkably\, these wormholes appear to be stable in appropriate regime
s\, and dominate over brane-anti-brane nucleation processes in the computa
tion of black hole microstate statistics.

A

DTSTART;TZID=Asia/Jerusalem:20210412T113000 DTEND;TZID=Asia/Jerusalem:20210412T123000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Omer Tsur\, Title: Searching for muon ic force carriers with ATLAS URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-omer-tsur-title-searching-for-muonic-force-carriers-with-atlas-2/ END:VEVENT BEGIN:VEVENT UID:068b584e17tbl2nmb35n2dp68u@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Amos’s journal club

\nTime: Apr 19\, 2021 02:00
PM Jerusalem

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\nhttps://technion.zoom.us/j/
99684338553

Meeting ID: 996 8433 8553

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br />\nFind your local number: https://technion.zoom.us/u/aWZao6DwF

Title: Defects and Anomalies in Quantum Field Theories

\nAbstract: I will review some recent developments in understanding the s tructure of anomalies in the presence of defects in CFTs. The defect inser tions lead to new ‘t Hooft anomalies and conformal anomalies on the defect worldvolume. The latter give riseto defect analogs of the c-theorem (a-th eorem) which establish the monotonicity of defect RG flows. With supersymm etry\, the defect conformal anomalies are related to the ‘t Hooft anomali es for certain U(1) R-symmetry in a simple way\, and can be determinednon- perturbatively from an algebraic procedure. In the talk I’ll mostly focus on surface defects to be concrete and comment on extensions and future dir ections towards the end.

DTSTART;TZID=Asia/Jerusalem:20210420T163000 DTEND;TZID=Asia/Jerusalem:20210420T173000 SEQUENCE:0 SUMMARY:Yifan Wang – SPECIAL TIME URL:https://phsites.technion.ac.il/strings/event/yifan-wang/ END:VEVENT BEGIN:VEVENT UID:39cg5oe9cs1te52uusvepcl39n@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Journal club

\nTime: Apr 26\, 2021 02:00 PM Jer
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Title: Hints of Gravitational Ergodicity

\nAbstract: R
ecent developments on black holes have shown that a

\nunitarity-compa
tible Page curve can be obtained from an

\nensemble-averaged semi-cla
ssical approximation. In this talk\, we

\nemphasize (1) that this pec
uliar manifestation of unitarity is not

\nspecific to black holes\, a
nd (2) that it can emerge from a single

\nrealization of an underlyin
g unitary theory. To make things explicit\,

\nwe consider a hard sphe
re gas leaking slowly from a small box into a

\nbigger box. We reprod
uce the unitarity-compatible Page curve of this

\nsystem\, semi-class
ically. Berry’s ensemble in which the eigenstates

\nlive\, plays a cr
ucial role. The computation has structural parallels

\nto replica wor
mholes\, relies crucially on ensemble averaging at each

\nepoch\, and
reveals the interplay between the multiple time-scales in

\nthe prob
lem. Working with the ensemble averaged state rather than the

\nentan
glement entropy\, we can also engineer an information “paradox”.

\nOu
r system provides a concrete example in which the ensemble

\nunderlyi
ng the semi-classical Page curve is an ergodic proxy for a

\ntime ave
rage\, and not an explicit average over many theories. The

\nquestion
s we address here are logically independent of the existence

\nof hor
izons\, so we expect that semi-classical gravity should also be

\nvie
wed in a similar light.

ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Journal club

\nTime: Apr 26\, 2021 02:00 PM Jer
usalem

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Title: Stringy ER=EPR.

\nAbstract: I will discuss a Lo rentzian interpretation of the FZZ duality as an equivalence between strin g perturbation theory about a two sided black hole and an entangled combin ation of disconnected microstates. The microstates involve a condensate of folded strings extending from a strong coupling region. Part of the machi nery involves string theory defined on Schwinger-Keldysh contours in targe t space\, and a novel contour of integration of the string moduli associat ed to angular quantization. I will further present an AdS3 uplift of this duality.

DTSTART;TZID=Asia/Jerusalem:20210504T170000 DTEND;TZID=Asia/Jerusalem:20210504T180000 SEQUENCE:0 SUMMARY:Daniel Jafferis – SPECIAL TIME URL:https://phsites.technion.ac.il/strings/event/daniel-jafferis-special-ti me/ END:VEVENT BEGIN:VEVENT UID:5sbpn83eh5edgcqq3gtc8fnr6d@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\nTopic: Journal club

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usalem

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Progress in celestial holography

DTSTART;TZID=Asia/Jerusalem:20210511T160000 DTEND;TZID=Asia/Jerusalem:20210511T170000 SEQUENCE:0 SUMMARY:Andrew Strominger URL:https://phsites.technion.ac.il/strings/event/andrew-strominger/ END:VEVENT BEGIN:VEVENT UID:6arhvlcbr0v5k945cv0l9apkcv@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Deviations from factorization in SYK

\nAbstract : Recently\, there has been a revived interest in multi-boundary holograph ic systems and the contribution of Euclidean wormholes\, in particular in Jackiw-Teitelboim (JT) gravity. We consider Sachdev-Ye-Kitaev (SYK) as a m icroscopic model for such holographic systems. While in JT gravity the non -factorizing contributions come from geometric wormholes\, we get that in SYK there are much larger contributions. We give a diagrammatic descriptio n of all those leading contributions\, analogous to Feynman diagrams. The holographic behavior is particularly interesting for fixed SYK couplings d ue to factorization\, and we comment on that as well.

DTSTART;TZID=Asia/Jerusalem:20210518T160000 DTEND;TZID=Asia/Jerusalem:20210518T170000 SEQUENCE:0 SUMMARY:Vladimir Narovlansky URL:https://phsites.technion.ac.il/strings/event/vladimir-narovlansky/ END:VEVENT BEGIN:VEVENT UID:ZOOM93315461558 DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:Physics Conference is inviting you to a scheduled Zoom meeti ng.

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scode: 571258

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Title: 6d/5d dualities from Higgsing

\nAbstract: (Base
d on https://arxiv.org/abs/2103
.02799 with a slightly different title.)

5d supersymmetric gauge
theories are sometimes UV completed by 6d SCFTs. One such example is the
duality between the affine quiver gauge theory in 5d and 6d so-called “con
formal matter” theory labeled by a D or E type lie algebra. In this talk w
e will see that starting from this duality and performing nilpotent Higgsi
ng on both sides\, one can generate a huge set of 6d/5d dualities. The 6d
side often involves a twist along a compactification by a discrete symmetr
y. The 5d side does not always admit a gauge theory description\, but some
times does and involves an exceptional gauge group including G or F type o
r an exceptional (non-fundamental) matter content. As a byproduct\, we get
a web-based formalism to compute the Nekrasov partition function for some
of the exceptional 5d gauge theories.

A

DTSTART;TZID=Asia/Jerusalem:20210531T113000 DTEND;TZID=Asia/Jerusalem:20210531T124500 LOCATION:Lewiner Seminar Room (412) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Orr Sela\, Title: Emergent Symmetries in Quantum Field Theory URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-orr-sela-title-emergent-symmetries-in-quantum-field-theory-2/ END:VEVENT BEGIN:VEVENT UID:24h9krg4514ko8mdt5uloedc5d@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jer
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Title: The Onset of Quantum Chaos

\nAbstract: We study the quantum version of the Lyapunov exponent in disordered theories. Gene rically the quantum Lyapunov exponent can only be computed in isolated CFT s\, and so not much is known about the way in which chaos grows as we defo rm the theory away from weak coupling. In this talk we describe families o f theories in which the disorder coupling is an exactly marginal deformati on\, allowing us to follow the Lyapunov exponent from weak to strong coupl ing. We find surprising behaviors in some cases\, including a discontinuou s transition into chaos\, which we compare to the expectation from classic al chaos. We also describe a new method allowing for computations in nontr ivial CFTs deformed by disorder.

DTSTART;TZID=Asia/Jerusalem:20210601T160000 DTEND;TZID=Asia/Jerusalem:20210601T170000 SEQUENCE:0 SUMMARY:Adar Sharon URL:https://phsites.technion.ac.il/strings/event/adar-sharon/ END:VEVENT BEGIN:VEVENT UID:le30n6fg1eh2g0mbhobu9vqu7s@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20210607T113000 DTEND;TZID=Asia/Jerusalem:20210607T124500 LOCATION:Lewiner Seminar Room (412) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Evyatar Sabag\, Title: The title: 4d Lagrangians From 6d RG Flows URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-evyatar-sabag-title-the-title-4d-lagrangians-from-6d-rg-flows-2/ END:VEVENT BEGIN:VEVENT UID:2b8790o22vkrogog1el92gj8uj@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

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\nTime: Apr 26\, 2021 02:00 PM Jer
usalem

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Title: Large Charge Phases of CFTs

\nAbstract: CFTs wi th additional global symmetries often possess significant simplification i n the regime in which the charges associated with the global symmetries be come large. In this talk\, we review some recent developments in the subje ct of CFTs atlarge global charges. We present results that are based on tw o papers: The first\, (based on https://arxiv.org/abs/2102.12583)involves the study of constraints du e to spontaneously broken boosts and dilatation symmetries around heavy st ates\, and the implications of the symmetry breaking for the spectrum of C FTs. In the second\, we study boundary conformal field theories (BCFTs) wi tha global U(1) symmetry at the large charge regime.

DTSTART;TZID=Asia/Jerusalem:20210608T160000 DTEND;TZID=Asia/Jerusalem:20210608T170000 SEQUENCE:0 SUMMARY:Avia Raviv-Moshe URL:https://phsites.technion.ac.il/strings/event/avia-raviv-moshe-2/ END:VEVENT BEGIN:VEVENT UID:10b980efqnntmksqj70ngtnn7l@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom me eting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jer
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**Title: Complexity for CFTs in General Dimensions**

Abstract: In this talk\, I will discuss circuit complexity for conf ormal field theory states in arbitrary dimensions. The circuits start from a primary state and move along a unitary representation of the Lorentzian conformal group. I will consider different choices of distance functions and explain how they can be understood in terms of the geometry of coadjoi nt orbits of the conformal group. This analysis will highlight a connectio n between the coadjoint orbits of the conformal group and timelike geodesi cs in anti-de Sitter spacetimes\, with interesting implications regarding the holographic complexity proposals. This is based on a work with Nicolas Chagnet\, Jan de Boer and Claire Zukowski.

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Title: Emergent symmetries in 3d and compactification from 5 d

\nAbstract: We study the phenomenon of symmetry enhancement in qua ntum field theories in three dimensions\, where the global symmetry of a m odel is larger in the IR than in the UV. We focus on supersymmetric theori es where the situation is more tractable\,and find an organizing principle for such enhancements in the form of compactifications of 5d theories on Riemann surfaces with flux in their global symmetries. We illustrate this by considering the compactification of the so-called 5d Seiberg SCFTs on t ori\,and obtain 3d theories with enhanced IR symmetries given by the 5d sy mmetry preserved by the chosen flux.

DTSTART;TZID=Asia/Jerusalem:20210706T160000 DTEND;TZID=Asia/Jerusalem:20210706T170000 SEQUENCE:0 SUMMARY:Orr Sela URL:https://phsites.technion.ac.il/strings/event/orr-sela-2/ END:VEVENT BEGIN:VEVENT UID:qo1m6os4sekrse641mtjdbi06o@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20211004T113000 DTEND;TZID=Asia/Jerusalem:20211004T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ran Segev\, Title: Asymmetric cumulan ts in high multiplicity pp collisions at LHC URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ran-segev-title-asymmetric-cumulants-in-high-multiplicity-pp-collisions- at-lhc-2/ END:VEVENT BEGIN:VEVENT UID:uuposuf2o387s9hbv674036vak@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20211011T113000 DTEND;TZID=Asia/Jerusalem:20211011T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Bar Tavor\, Title: AdS black hole sym metries and enstrophy URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-bar-tavor-title-ads-black-hole-symmetries-and-enstrophy-2/ END:VEVENT BEGIN:VEVENT UID:cobltn91ij2aklt05njdmouu9o@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20211011T140000 DTEND;TZID=Asia/Jerusalem:20211011T150000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Gal Avner\, Title: Measuring the Rati o Between Di-muon and Di-electrons Final States in the Presence of Zero or One b-tag Jet in the ATLAS Experiment URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-gal-avner-title-measuring-the-ratio-between-di-muon-and-di-electrons-fin al-states-in-the-presence-of-zero-or-one-b-tag-jet-in-the-atlas-experiment -2/ END:VEVENT BEGIN:VEVENT UID:euntnqu38d052v9nupp4cv28ks@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20211018T113000 DTEND;TZID=Asia/Jerusalem:20211018T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Yaniv Weiss\, Title: EFT amplitudes v ia on-shell methods URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-yaniv-weiss-title-eft-amplitudes-via-on-shell-methods-2/ END:VEVENT BEGIN:VEVENT UID:3ofpqh45bgr1ck28fotukfs9tn@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The structure of the initial conditions of the univer
se

\nAbstract: I will review what we know about the initial condition
s of the universe from observations. Then\, I will explain how they arise
within the framework of inflation\, and describe recent progress in classi
fying (or “bootstrapping”) the possible correlation functions between prim
ordial fluctuations. Finally\, time permitting\, I will touch upon work in
progress trying to apply the bootstrap philosophy to more general cosmolo
gies.

A

DTSTART;TZID=Asia/Jerusalem:20211108T113000 DTEND;TZID=Asia/Jerusalem:20211108T124500 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Francesco Mignosa\, Title: On fixed p oints and phase transitions in five dimensions URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-francesco-mignosa-title-on-fixed-points-and-phase-transitions-in-five-di mensions-2/ END:VEVENT BEGIN:VEVENT UID:6f6jdpqcccuv4d9117vdr5uoul@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Holography of Chronology Protection

\nAbstract:
After an introduction to time-machine spacetimes and simple models of them
\, I will discuss recent work with M. Tomasevic where we use holography to
study quantum effects when closed timelike curves (CTCs) are developed. W
e address the question of whether it is possible to send a signal across t
he chronology horizon\, passing into the region where CTCs are present. We
find that the self-interaction of quantum fields manages to banish the pa
ssage of field excitations into the non-chronal region. Going further\, we
compute the gravitational backreaction of the quantum fields\, and show t
hat the null chronology horizon turns into a strong\, spacelike curvature
singularity. This is one of the few controlled\, explicit examples where w
e can see quantum effects change a Cauchy horizon into a spacelike singula
rity.

A

DTSTART;TZID=Asia/Jerusalem:20211115T113000 DTEND;TZID=Asia/Jerusalem:20211115T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ofri Telem\, Title: Confinement and C hiral Symmetry Breaking in Near-SUSY Theories URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ofri-telem-title-confinement-and-chiral-symmetry-breaking-in-near-susy-t heories/ END:VEVENT BEGIN:VEVENT UID:42vfairg4is2jild3oquh9qi1v@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Mastering bounds on correlators

\nAbstract: We d
iscuss a new viewpoint onto the CFT landscape: bounds on values of CFT cor
relators. We show that such bounds can be obtained by constructing suitabl
e ‘master functionals’. We present both numerical results for 3d CFTs as w
ell as exact results for correlators on the line. The latter follow from c
rossing symmetric dispersion relations. We briefly discuss how these may b
e used to study the Regge and flat space limits of CFT correlators.

A

DTSTART;TZID=Asia/Jerusalem:20211122T113000 DTEND;TZID=Asia/Jerusalem:20211122T124500 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Chaja Baruch\, Title: Probing new axi al vectors at the intensity frontier URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-chaja-baruch-title-probing-new-axial-vectors-at-the-intensity-frontier/ END:VEVENT BEGIN:VEVENT UID:v3ibs2r0div2i870mbm459nrh4@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A

DTSTART;TZID=Asia/Jerusalem:20211206T113000 DTEND;TZID=Asia/Jerusalem:20211206T123000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Akhil Sivakumar \, Title: Fluctuating Hydrodynamics from holography URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-akhil-sivakumar-title-fluctuating-hydrodynamics-from-holography-2/ END:VEVENT BEGIN:VEVENT UID:5gh1sh5v7fs87ll6s3npk49mtr@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: TBA

\nAbstract:TBA

A

DTSTART;TZID=Asia/Jerusalem:20211213T113000 DTEND;TZID=Asia/Jerusalem:20211213T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Gadi Afek\, Title: Precision searches for new physics using optically levitated sensors URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-gadi-afek-title-precision-searches-for-new-physics-using-optically-levit ated-sensors-2/ END:VEVENT BEGIN:VEVENT UID:73gsvb2rgrlfaeg2tm1mm2tfgt@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:* Title: *Bootstrapping

** Abstract: **We study th
e

Title:TBA

\nAbstract:TBA

A

DTSTART;TZID=Asia/Jerusalem:20211220T113000 DTEND;TZID=Asia/Jerusalem:20211220T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ben Ohayon\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ben-ohayon-title-tba/ END:VEVENT BEGIN:VEVENT UID:4keuie44dlurm5mr6hunnk1qup@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: TBA

\nAbstract:TBA

A

DTSTART;TZID=Asia/Jerusalem:20211227T113000 DTEND;TZID=Asia/Jerusalem:20211227T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shaouly Bar Shalom\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shaouly-bar-shalom-title-tba-2/ END:VEVENT BEGIN:VEVENT UID:0ku1b77qk9f25q8tmfoh6ed03o@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA

\nAbstract: TBA

Title:TBA

\nAbstract:TBA

A

DTSTART;TZID=Asia/Jerusalem:20211228T133000 DTEND;TZID=Asia/Jerusalem:20211228T143000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Nadav Priel\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-nadav-priel-title-tba/ END:VEVENT BEGIN:VEVENT UID:19o54hhpq3v3qvs18t8qu1dsfl@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:** Title: **Some aspects of line defects in d dimen
sions

** Abstract:** We consider renormalization group fl
ows on line defects in d dimensions. We define a “defect entropy” and argu
e that it decreases monotonically during RG flows. We apply this result to
line defects which appear in condensed matter and high energy physics\, i
ncluding magnetic (SPT) defects\, localized field defects\, and Wilson loo
ps. In some of these cases we make some new experimental predictions and i
n the case of Wilson lines we make some comparisons with localization and
holography.

Title:TBA

\nAbstract:TBA

A

DTSTART;TZID=Asia/Jerusalem:20220110T113000 DTEND;TZID=Asia/Jerusalem:20220110T124500 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ran Itay\, Title: MicroBooNE’s new re sults from the deep-learning-based 2-body CCQE search for an electron neu trino excess URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ran-itay-title-microboones-new-results-from-the-deep-learning-based-2-bo dy-ccqe-search-for-an-electron-neutrino-excess-2/ END:VEVENT BEGIN:VEVENT UID:3kuq9b42nicikfh28e1sh7v1gj@google.com DTSTAMP:20211203T044955Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA

\nAbstract: TBA

Title:TBA

\nAbstract: TBA