Relaxation of isolated quantum systems beyond chaos

In classical statistical mechanics there is a clear correlation between relaxation to equilibrium and chaos. In contrast, for isolated quantum systems this relation is - to say the least - fuzzy. In this work we try to unveil the intricate relation between the relaxation process and the transition f...

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Autores principales: García-Mata, Ignacio, Roncaglia, Augusto José, Wisniacki, Diego A.
Publicado: 2015
Materias:
Quantum electronics
Quantum optics
Statistical mechanics
Approach to equilibrium
Chaotic nature
Classical statistical mechanics
Delocalizations
Initial state
Many-body quantum systems
Quantum system
Relaxation to equilibrium
Quantum theory
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v91_n1_p_GarciaMata
http://hdl.handle.net/20.500.12110/paper_15393755_v91_n1_p_GarciaMata
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_15393755_v91_n1_p_GarciaMata
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spelling paper:paper_15393755_v91_n1_p_GarciaMata2023-06-08T16:21:02Z Relaxation of isolated quantum systems beyond chaos García-Mata, Ignacio Roncaglia, Augusto José Wisniacki, Diego A. Quantum electronics Quantum optics Statistical mechanics Approach to equilibrium Chaotic nature Classical statistical mechanics Delocalizations Initial state Many-body quantum systems Quantum system Relaxation to equilibrium Quantum theory In classical statistical mechanics there is a clear correlation between relaxation to equilibrium and chaos. In contrast, for isolated quantum systems this relation is - to say the least - fuzzy. In this work we try to unveil the intricate relation between the relaxation process and the transition from integrability to chaos. We study the approach to equilibrium in two different many-body quantum systems that can be parametrically tuned from regular to chaotic. We show that a universal relation between relaxation and delocalization of the initial state in the perturbed basis can be established regardless of the chaotic nature of system. © 2015 American Physical Society. Fil:García-Mata, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Roncaglia, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Wisniacki, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v91_n1_p_GarciaMata http://hdl.handle.net/20.500.12110/paper_15393755_v91_n1_p_GarciaMata
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Quantum electronics
Quantum optics
Statistical mechanics
Approach to equilibrium
Chaotic nature
Classical statistical mechanics
Delocalizations
Initial state
Many-body quantum systems
Quantum system
Relaxation to equilibrium
Quantum theory
spellingShingle Quantum electronics
Quantum optics
Statistical mechanics
Approach to equilibrium
Chaotic nature
Classical statistical mechanics
Delocalizations
Initial state
Many-body quantum systems
Quantum system
Relaxation to equilibrium
Quantum theory
García-Mata, Ignacio
Roncaglia, Augusto José
Wisniacki, Diego A.
Relaxation of isolated quantum systems beyond chaos
topic_facet Quantum electronics
Quantum optics
Statistical mechanics
Approach to equilibrium
Chaotic nature
Classical statistical mechanics
Delocalizations
Initial state
Many-body quantum systems
Quantum system
Relaxation to equilibrium
Quantum theory
description In classical statistical mechanics there is a clear correlation between relaxation to equilibrium and chaos. In contrast, for isolated quantum systems this relation is - to say the least - fuzzy. In this work we try to unveil the intricate relation between the relaxation process and the transition from integrability to chaos. We study the approach to equilibrium in two different many-body quantum systems that can be parametrically tuned from regular to chaotic. We show that a universal relation between relaxation and delocalization of the initial state in the perturbed basis can be established regardless of the chaotic nature of system. © 2015 American Physical Society.
author García-Mata, Ignacio
Roncaglia, Augusto José
Wisniacki, Diego A.
author_facet García-Mata, Ignacio
Roncaglia, Augusto José
Wisniacki, Diego A.
author_sort García-Mata, Ignacio
title Relaxation of isolated quantum systems beyond chaos
title_short Relaxation of isolated quantum systems beyond chaos
title_full Relaxation of isolated quantum systems beyond chaos
title_fullStr Relaxation of isolated quantum systems beyond chaos
title_full_unstemmed Relaxation of isolated quantum systems beyond chaos
title_sort relaxation of isolated quantum systems beyond chaos
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v91_n1_p_GarciaMata
http://hdl.handle.net/20.500.12110/paper_15393755_v91_n1_p_GarciaMata
work_keys_str_mv AT garciamataignacio relaxationofisolatedquantumsystemsbeyondchaos
AT roncagliaaugustojose relaxationofisolatedquantumsystemsbeyondchaos
AT wisniackidiegoa relaxationofisolatedquantumsystemsbeyondchaos
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