Jul 26 – 28, 2021
CERN
Europe/Zurich timezone

Thermalization of 2d Quantum Field Theories

Jul 28, 2021, 3:30 PM
45m
ZOOM only (CERN)

ZOOM only

CERN

Speaker

Delacrétaz Luca (University of Chicago)

Description

I will show that (1+1)d QFTs typically thermalize more slowly than the expected "Planckian" equilibration time 1/T. This arises due to causality, which imposes strong constraints on the emergence of hydrodynamic sound in low dimensions. Subluminality of sound further allows one to define a thermodynamic analogue of Zamolodchikov's C-function, and constrain the sign of the TT-bar term in the low energy limit of any 2d QFT.

Presentation materials