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SUMMARY:Quantum Systems out-of-equilibrium: the Eigenstate Thermalization 
 Hypothesis and Beyond
DTSTART:20231103T120000Z
DTEND:20231103T140000Z
DTSTAMP:20260828T093400Z
UID:indico-event-433@indico.hiskp.uni-bonn.de
DESCRIPTION:Speakers: Silvia Pappalardi (University of Cologne)\n\nUnderst
 anding how thermal equilibrium and irreversibility arise from unitary quan
 tum evolution is a theme as old as quantum mechanics. This question has re
 cently been the focus of great attention due to the great experimental pro
 gress in quantum simulations\, which now allow us to probe dynamics at unp
 recedented time scales in condensed matter physics. The current framework
  for understanding quantum dynamics is given by the Eigenstate-Thermmaliza
 tion Hypothesis (ETH). This is a simple assumption on the structure of loc
 al observables in the energy eigenbasis\, that has proved to be extremely 
 successful in describing some dynamical properties of physical Hamiltonian
  systems. In this colloquium\, I will discuss the recent developments in 
 the field going beyond the standard framework. First\, if one is intereste
 d in correlations of multiple times (relevant beyond linear response or to
  account for chaos)\, it becomes clear that ETH as was known is incomplete
 . I will introduce the full version of ETH and the emergence of Free Proba
 bility as the right tool to describe it. Secondly\, I will describe the di
 fferent mechanisms leading to violations of ETH and I will present long-ra
 nge interacting systems as a remarkable example. \n\nhttps://indico.hiskp
 .uni-bonn.de/event/433/
LOCATION:Nußallee 12/2.006 (PI) - Lecture Hall I (PI)
URL:https://indico.hiskp.uni-bonn.de/event/433/
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