[:is]Math Phys seminar
Fyrirlesari: Jorge Laraña Aragon,University of Stockholm
Titill: Quenched coupling, effective thermalization and evanescence in the free $O(N)$ vector model
Staðsetning: VR-II, V-156
Tími: Fimmtudag 15.ágúst kl. 14:00
Ágrip:
In this project we study two coupled free $O(N)$ vector models implementing the coupling via a quench of mixing. Since the theory is integrable pure thermalization does not occur but the quantum modes thermalize independently. Generalized thermal behavior is obtained at late times in the limit of weak initial mixing. We investigate this from both the effective density matrix and the spectral density function. When computing the latter, we observe that late-time correlation functions of composite operators in the post-quench free QFT surprisingly share interesting properties with correlators in strongly coupled systems. We discuss a possible holographic interpretation in terms of the so called evanescent modes.[:en]
Math Phys seminar
Speaker: Jorge Laraña Aragon,University of Stockholm
Title: Quenched coupling, effective thermalization and evanescence in the free $O(N)$ vector model
Room: VR-II, V-156
Time: Thursday 15th August, 14:00hrs
Abstract:
In this project we study two coupled free $O(N)$ vector models implementing the coupling via a quench of mixing. Since the theory is integrable pure thermalization does not occur but the quantum modes thermalize independently. Generalized thermal behavior is obtained at late times in the limit of weak initial mixing. We investigate this from both the effective density matrix and the spectral density function. When computing the latter, we observe that late-time correlation functions of composite operators in the post-quench free QFT surprisingly share interesting properties with correlators in strongly coupled systems. We discuss a possible holographic interpretation in terms of the so called evanescent modes.[:]