Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study

Extending our previous work, quantum dynamic simulations are performed to study low temperature heat transport in a spin-boson model where a two-level subsystem is coupled to two independent harmonic baths. Multilayer multiconfiguration time-dependent Hartree theory is used to numerically evaluate t...

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Autores principales: Yang, Chou-Hsun, Wang, Haobin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7597201/
https://www.ncbi.nlm.nih.gov/pubmed/33286870
http://dx.doi.org/10.3390/e22101099
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author Yang, Chou-Hsun
Wang, Haobin
author_facet Yang, Chou-Hsun
Wang, Haobin
author_sort Yang, Chou-Hsun
collection PubMed
description Extending our previous work, quantum dynamic simulations are performed to study low temperature heat transport in a spin-boson model where a two-level subsystem is coupled to two independent harmonic baths. Multilayer multiconfiguration time-dependent Hartree theory is used to numerically evaluate the thermal flux, for which the bath is represented by hundreds to thousands of modes. The simulation results are compared with the approximate Redfield theory approach, and the physics is analyzed versus different physical parameters.
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spelling pubmed-75972012020-11-09 Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study Yang, Chou-Hsun Wang, Haobin Entropy (Basel) Article Extending our previous work, quantum dynamic simulations are performed to study low temperature heat transport in a spin-boson model where a two-level subsystem is coupled to two independent harmonic baths. Multilayer multiconfiguration time-dependent Hartree theory is used to numerically evaluate the thermal flux, for which the bath is represented by hundreds to thousands of modes. The simulation results are compared with the approximate Redfield theory approach, and the physics is analyzed versus different physical parameters. MDPI 2020-09-29 /pmc/articles/PMC7597201/ /pubmed/33286870 http://dx.doi.org/10.3390/e22101099 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Chou-Hsun
Wang, Haobin
Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
title Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
title_full Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
title_fullStr Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
title_full_unstemmed Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
title_short Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
title_sort heat transport in a spin-boson model at low temperatures: a multilayer multiconfiguration time-dependent hartree study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7597201/
https://www.ncbi.nlm.nih.gov/pubmed/33286870
http://dx.doi.org/10.3390/e22101099
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AT wanghaobin heattransportinaspinbosonmodelatlowtemperaturesamultilayermulticonfigurationtimedependenthartreestudy

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