Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence

We study the decoherence process for an open quantum system that is classically chaotic (a quartic double well with harmonic driving coupled to a sea of harmonic oscillators). We carefully analyze the time dependence of the rate of entropy production showing that it has two relevant regimes: For sho...

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Publicado: 2001
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v64_n5_p13_Monteoliva
http://hdl.handle.net/20.500.12110/paper_1063651X_v64_n5_p13_Monteoliva
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_1063651X_v64_n5_p13_Monteoliva
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spelling paper:paper_1063651X_v64_n5_p13_Monteoliva2025-07-30T18:39:45Z Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence We study the decoherence process for an open quantum system that is classically chaotic (a quartic double well with harmonic driving coupled to a sea of harmonic oscillators). We carefully analyze the time dependence of the rate of entropy production showing that it has two relevant regimes: For short times it is proportional to the diffusion coefficient (fixed by the system-environment coupling strength); for longer times (but before equilibration) it is fixed by dynamical properties of the system (and is related to the Lyapunov exponent). The nature of the transition time between both regimes is investigated and the issue of quantum to classical correspondence is addressed. Finally, the impact of the interaction with the environment on coherent tunneling is analyzed. © 2001 The American Physical Society. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v64_n5_p13_Monteoliva http://hdl.handle.net/20.500.12110/paper_1063651X_v64_n5_p13_Monteoliva
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We study the decoherence process for an open quantum system that is classically chaotic (a quartic double well with harmonic driving coupled to a sea of harmonic oscillators). We carefully analyze the time dependence of the rate of entropy production showing that it has two relevant regimes: For short times it is proportional to the diffusion coefficient (fixed by the system-environment coupling strength); for longer times (but before equilibration) it is fixed by dynamical properties of the system (and is related to the Lyapunov exponent). The nature of the transition time between both regimes is investigated and the issue of quantum to classical correspondence is addressed. Finally, the impact of the interaction with the environment on coherent tunneling is analyzed. © 2001 The American Physical Society.
title Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence
spellingShingle Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence
title_short Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence
title_full Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence
title_fullStr Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence
title_full_unstemmed Decoherence in a classically chaotic quantum system: Entropy production and quantum-classical correspondence
title_sort decoherence in a classically chaotic quantum system: entropy production and quantum-classical correspondence
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v64_n5_p13_Monteoliva
http://hdl.handle.net/20.500.12110/paper_1063651X_v64_n5_p13_Monteoliva
_version_ 1840323544821530624

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