Quantum quench dynamics of the sine-Gordon model in some solvable limits

With regard to the thermalization problem in isolated quantum systems, we investigate the dynamics following a quantum quench of the sineGordon model (sGM) in the Luther-Emery and the semiclassical limits. We consider the quench from the gapped to the gapless phase, as well as the reverse one. By ob...

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Detalles Bibliográficos
Autores principales: Iucci, Aníbal, Cazalilla, M. A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Exactas
Gibbs ensemble
Sine Gordon model
Thermalization
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82523
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82523
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Gibbs ensemble
Sine Gordon model
Thermalization
spellingShingle Ciencias Exactas
Gibbs ensemble
Sine Gordon model
Thermalization
Iucci, Aníbal
Cazalilla, M. A.
Quantum quench dynamics of the sine-Gordon model in some solvable limits
topic_facet Ciencias Exactas
Gibbs ensemble
Sine Gordon model
Thermalization
description With regard to the thermalization problem in isolated quantum systems, we investigate the dynamics following a quantum quench of the sineGordon model (sGM) in the Luther-Emery and the semiclassical limits. We consider the quench from the gapped to the gapless phase, as well as the reverse one. By obtaining analytic expressions for the one- and two-point correlation functions of the order parameter operator at zero-temperature, the manifestations of integrability in the absence of thermalization in the sGM are studied. It is shown that correlations in the long-time regime after the quench are well described by a generalized Gibbs ensemble. We also consider the case where the system is initially in contact with a reservoir at finite temperature. The possible relevance of our results to current and future experiments with ultracold atomic systems is also considered.
format Articulo
Articulo
author Iucci, Aníbal
Cazalilla, M. A.
author_facet Iucci, Aníbal
Cazalilla, M. A.
author_sort Iucci, Aníbal
title Quantum quench dynamics of the sine-Gordon model in some solvable limits
title_short Quantum quench dynamics of the sine-Gordon model in some solvable limits
title_full Quantum quench dynamics of the sine-Gordon model in some solvable limits
title_fullStr Quantum quench dynamics of the sine-Gordon model in some solvable limits
title_full_unstemmed Quantum quench dynamics of the sine-Gordon model in some solvable limits
title_sort quantum quench dynamics of the sine-gordon model in some solvable limits
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/82523
work_keys_str_mv AT iuccianibal quantumquenchdynamicsofthesinegordonmodelinsomesolvablelimits
AT cazalillama quantumquenchdynamicsofthesinegordonmodelinsomesolvablelimits
bdutipo_str Repositorios
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