Cours de physique théorique de Saclay

Vendredi 27/09/2019, 10h00-12h15
Orme des Merisiers Salle Claude Itzykson, Bˆat. 774
Lorentzian methods in conformal field theory (1/4)
Slava Rychkov
IHES, ENS
Paraphrasing Alexander Polyakov, “Conformal Field Theory is a way to learn about elementary particles by studying boiling water”. There is a technical statement behind this joke:
Euclidean Conformal Field Theory, under certain conditions, can be rotated to the Lorentzian
signature, and vice versa. This means that even statistical physicists studying finite-temperature
phase transitions on a lattice should learn about the Minkowski space! The goal of this course
will be to explain various classical and recent results pertaining to this somewhat surprising conclusion.

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