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The Quantum Field Theory on Which the Everyday World Supervenes

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Limits on a new fifth force, in terms of its strength relative to gravity, as a function of its range. Adapted from data collected in (Adelberger et al., 2009). This is a rough reconstruction; see original source for details.

Sean M. Carroll
Effective Field Theory (EFT) is the successful paradigm underlying modern theoretical physics, including the “Core Theory” of the Standard Model of particle physics plus Einstein’s general relativity. I will argue that EFT grants us a unique insight: each EFT model comes with a built-in specification of its domain of applicability. Hence, once a model is tested within some domain (of energies and interaction strengths), we can be confident that it will continue to be accurate within that domain. Currently, the Core Theory has been tested in regimes that include all of the energy scales relevant to the physics of everyday life (biology, chemistry, technology, etc.). Therefore, we have reason to be confident that the laws of physics underlying the phenomena of everyday life are completely known.
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Written by physicsgg

January 23, 2021 at 10:45 am

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