Thermalization in systems with bipartite eigenmode entanglement

It is analytically shown that the asymptotic correlations following a quantum quench in exactly solvable models can sometimes look essentially thermal provided the initial coupling between the system eigenmodes induces a large gap. We study this phenomenon using simple models, which also illustrate...

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Detalles Bibliográficos
Autores principales: Chung, Ming Chiang, Iucci, Aníbal, Cazalilla, M. A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84997
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84997
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Chung, Ming Chiang
Iucci, Aníbal
Cazalilla, M. A.
Thermalization in systems with bipartite eigenmode entanglement
topic_facet Física
description It is analytically shown that the asymptotic correlations following a quantum quench in exactly solvable models can sometimes look essentially thermal provided the initial coupling between the system eigenmodes induces a large gap. We study this phenomenon using simple models, which also illustrate the relationship between the entanglement spectrum of the initial state and the generalized Gibbs ensemble describing the long-time correlations after the quench. We also show that the effective temperature characterizing the correlations is not related to the energy fluctuations after the quench, and therefore does not have thermodynamic meaning. The latter observation implies a breakdown of the fluctuation-dissipation theorem.
format Articulo
Articulo
author Chung, Ming Chiang
Iucci, Aníbal
Cazalilla, M. A.
author_facet Chung, Ming Chiang
Iucci, Aníbal
Cazalilla, M. A.
author_sort Chung, Ming Chiang
title Thermalization in systems with bipartite eigenmode entanglement
title_short Thermalization in systems with bipartite eigenmode entanglement
title_full Thermalization in systems with bipartite eigenmode entanglement
title_fullStr Thermalization in systems with bipartite eigenmode entanglement
title_full_unstemmed Thermalization in systems with bipartite eigenmode entanglement
title_sort thermalization in systems with bipartite eigenmode entanglement
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84997
work_keys_str_mv AT chungmingchiang thermalizationinsystemswithbipartiteeigenmodeentanglement
AT iuccianibal thermalizationinsystemswithbipartiteeigenmodeentanglement
AT cazalillama thermalizationinsystemswithbipartiteeigenmodeentanglement
bdutipo_str Repositorios
_version_ 1764820488808300544

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