physics4me

Field-theoretical approach and applications

Schematic phase diagram of ⁴He in the plane of pressure P and temperature T

Andreas Schmitt
In this pedagogical introduction, I discuss theoretical aspects of superfluidity and superconductivity, mostly using a field-theoretical formalism. While the emphasis is on general concepts and mechanisms behind superfluidity, I also discuss various applications in low-energy and high-energy physics.
Besides some introductory and standard topics such as superfluid helium and superfluidity in a simple scalar field theory, the lecture notes also include more advanced chapters, for instance discussions of the covariant two-fluid formalism and Cooper pairing with mismatched Fermi surfaces….
…. Read more at http://arxiv.org/pdf/1404.1284v1.pdf