Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment

Evolution of a self-consistent joint system (JS), i.e., a quantum system (QS) + thermal bath (TB), is considered within the framework of the Langevin–Schrödinger (L-Sch) type equation. As a tested QS, we considered two linearly coupled quantum oscillators that interact with TB. The influence of TB o...

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Main Authors: Ashot S. Gevorkyan, Alexander V. Bogdanov, Vladimir V. Mareev
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/8/1546
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author Ashot S. Gevorkyan
Alexander V. Bogdanov
Vladimir V. Mareev
author_facet Ashot S. Gevorkyan
Alexander V. Bogdanov
Vladimir V. Mareev
author_sort Ashot S. Gevorkyan
collection DOAJ
description Evolution of a self-consistent joint system (JS), i.e., a quantum system (QS) + thermal bath (TB), is considered within the framework of the Langevin–Schrödinger (L-Sch) type equation. As a tested QS, we considered two linearly coupled quantum oscillators that interact with TB. The influence of TB on QS is described by the white noise type autocorrelation function. Using the reference differential equation, the original L-Sch equation is reduced to an autonomous form on a random space–time continuum, which reflects the fact of the existence of a hidden symmetry of JS. It is proven that, as a result of JS relaxation, a two-dimensional quantized small environment is formed, which is an integral part of QS. The possibility of constructing quantum thermodynamics from the first principles of non-Hermitian quantum mechanics without using any additional axioms has been proven. A numerical algorithm has been developed for modeling various properties and parameters of the QS and its environment.
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spelling doaj.art-d8f47e6b0ba848df85972a15b955726a2023-11-22T10:03:16ZengMDPI AGSymmetry2073-89942021-08-01138154610.3390/sym13081546Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small EnvironmentAshot S. Gevorkyan0Alexander V. Bogdanov1Vladimir V. Mareev2Institute for Informatics and Automation Problems NAS of RA, 1, P. Sevak Str., Yerevan 0014, ArmeniaFaculty of Applied Mathematics and Control Processes, Saint-Petersburg State University, 198504 Saint-Petersburg, RussiaFaculty of Applied Mathematics and Control Processes, Saint-Petersburg State University, 198504 Saint-Petersburg, RussiaEvolution of a self-consistent joint system (JS), i.e., a quantum system (QS) + thermal bath (TB), is considered within the framework of the Langevin–Schrödinger (L-Sch) type equation. As a tested QS, we considered two linearly coupled quantum oscillators that interact with TB. The influence of TB on QS is described by the white noise type autocorrelation function. Using the reference differential equation, the original L-Sch equation is reduced to an autonomous form on a random space–time continuum, which reflects the fact of the existence of a hidden symmetry of JS. It is proven that, as a result of JS relaxation, a two-dimensional quantized small environment is formed, which is an integral part of QS. The possibility of constructing quantum thermodynamics from the first principles of non-Hermitian quantum mechanics without using any additional axioms has been proven. A numerical algorithm has been developed for modeling various properties and parameters of the QS and its environment.https://www.mdpi.com/2073-8994/13/8/1546open quantum systemLangevin–Schrödinger equationnon-Hermitian quantum mechanicsfunctional integral representationsmall quantized environmentBell states
spellingShingle Ashot S. Gevorkyan
Alexander V. Bogdanov
Vladimir V. Mareev
Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment
Symmetry
open quantum system
Langevin–Schrödinger equation
non-Hermitian quantum mechanics
functional integral representation
small quantized environment
Bell states
title Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment
title_full Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment
title_fullStr Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment
title_full_unstemmed Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment
title_short Hidden Dynamical Symmetry and Quantum Thermodynamics from the First Principles: Quantized Small Environment
title_sort hidden dynamical symmetry and quantum thermodynamics from the first principles quantized small environment
topic open quantum system
Langevin–Schrödinger equation
non-Hermitian quantum mechanics
functional integral representation
small quantized environment
Bell states
url https://www.mdpi.com/2073-8994/13/8/1546
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