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

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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Main Authors: Chou-Hsun Yang, Haobin Wang
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Entropy
Subjects:
ML-MCTDH
spin-boson
heat transport
quantum dynamics
Online Access:https://www.mdpi.com/1099-4300/22/10/1099
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spelling doaj-aaa04597b22f474194b57699147e64da2020-11-25T03:40:06ZengMDPI AGEntropy1099-43002020-09-01221099109910.3390/e22101099Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree StudyChou-Hsun Yang0Haobin Wang1Department of Chemistry, University of Colorado Denver, Denver, CO 80217-3364, USADepartment of Chemistry, University of Colorado Denver, Denver, CO 80217-3364, USAExtending 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.https://www.mdpi.com/1099-4300/22/10/1099ML-MCTDHspin-bosonheat transportquantum dynamics
collection DOAJ
language English
format Article
sources DOAJ
author Chou-Hsun Yang
Haobin Wang
spellingShingle Chou-Hsun Yang
Haobin Wang
Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study
Entropy
ML-MCTDH
spin-boson
heat transport
quantum dynamics
author_facet Chou-Hsun Yang
Haobin Wang
author_sort Chou-Hsun Yang
title 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_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_sort heat transport in a spin-boson model at low temperatures: a multilayer multiconfiguration time-dependent hartree study
publisher MDPI AG
series Entropy
issn 1099-4300
publishDate 2020-09-01
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.
topic ML-MCTDH
spin-boson
heat transport
quantum dynamics
url https://www.mdpi.com/1099-4300/22/10/1099
work_keys_str_mv AT chouhsunyang heattransportinaspinbosonmodelatlowtemperaturesamultilayermulticonfigurationtimedependenthartreestudy
AT haobinwang heattransportinaspinbosonmodelatlowtemperaturesamultilayermulticonfigurationtimedependenthartreestudy
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