Finite temperature dynamics of the Holstein-Tavis-Cummings model

By employing the numerically accurate multiple Davydov Ansatz (mDA) formalism in combination with the thermo-field dynamics (TFD) representation of quantum mechanics, we systematically explore the influence of three parameters-temperature, photonic-mode detuning, and qubit-phonon coupling-on populat...

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Main Authors: Hou, Erqin, Sun, Kewei, Gelin, Maxim F., Zhao, Yang
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/174861
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1748612024-04-19T15:59:43Z Finite temperature dynamics of the Holstein-Tavis-Cummings model Hou, Erqin Sun, Kewei Gelin, Maxim F. Zhao, Yang School of Materials Science and Engineering Engineering Coupling temperature Detunings By employing the numerically accurate multiple Davydov Ansatz (mDA) formalism in combination with the thermo-field dynamics (TFD) representation of quantum mechanics, we systematically explore the influence of three parameters-temperature, photonic-mode detuning, and qubit-phonon coupling-on population dynamics and absorption spectra of the Holstein-Tavis-Cummings (HTC) model. It is found that elevated qubit-phonon couplings and/or temperatures have a similar impact on all dynamic observables: they suppress the amplitudes of Rabi oscillations in photonic populations as well as broaden the peaks and decrease their intensities in the absorption spectra. Our results unequivocally demonstrate that the HTC dynamics is very sensitive to the concerted variation of the three aforementioned parameters, and this finding can be used for fine-tuning polaritonic transport. The developed mDA-TFD methodology can be efficiently applied for modeling, predicting, optimizing, and comprehensively understanding dynamic and spectroscopic responses of actual molecular systems in microcavities. Ministry of Education (MOE) Published version The authors gratefully acknowledge the support of the Singapore Ministry of Education Academic Research Fund (Grant No. RG87/20). K. Sun would like to acknowledge the Natural Science Foundation of Zhejiang Province (Grant No. LY18A040005) for partial support. 2024-04-15T00:39:53Z 2024-04-15T00:39:53Z 2024 Journal Article Hou, E., Sun, K., Gelin, M. F. & Zhao, Y. (2024). Finite temperature dynamics of the Holstein-Tavis-Cummings model. Journal of Chemical Physics, 160(8), 084116-1-084116-12. https://dx.doi.org/10.1063/5.0193471 0021-9606 https://hdl.handle.net/10356/174861 10.1063/5.0193471 38421073 2-s2.0-85186278112 8 160 084116-1 084116-12 en RG87/20 Journal of Chemical Physics © 2024 Author(s). Published under an exclusive license by AIP Publishing. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1063/5.0193471 application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Coupling temperature
Detunings
spellingShingle Engineering
Coupling temperature
Detunings
Hou, Erqin
Sun, Kewei
Gelin, Maxim F.
Zhao, Yang
Finite temperature dynamics of the Holstein-Tavis-Cummings model
description By employing the numerically accurate multiple Davydov Ansatz (mDA) formalism in combination with the thermo-field dynamics (TFD) representation of quantum mechanics, we systematically explore the influence of three parameters-temperature, photonic-mode detuning, and qubit-phonon coupling-on population dynamics and absorption spectra of the Holstein-Tavis-Cummings (HTC) model. It is found that elevated qubit-phonon couplings and/or temperatures have a similar impact on all dynamic observables: they suppress the amplitudes of Rabi oscillations in photonic populations as well as broaden the peaks and decrease their intensities in the absorption spectra. Our results unequivocally demonstrate that the HTC dynamics is very sensitive to the concerted variation of the three aforementioned parameters, and this finding can be used for fine-tuning polaritonic transport. The developed mDA-TFD methodology can be efficiently applied for modeling, predicting, optimizing, and comprehensively understanding dynamic and spectroscopic responses of actual molecular systems in microcavities.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Hou, Erqin
Sun, Kewei
Gelin, Maxim F.
Zhao, Yang
format Article
author Hou, Erqin
Sun, Kewei
Gelin, Maxim F.
Zhao, Yang
author_sort Hou, Erqin
title Finite temperature dynamics of the Holstein-Tavis-Cummings model
title_short Finite temperature dynamics of the Holstein-Tavis-Cummings model
title_full Finite temperature dynamics of the Holstein-Tavis-Cummings model
title_fullStr Finite temperature dynamics of the Holstein-Tavis-Cummings model
title_full_unstemmed Finite temperature dynamics of the Holstein-Tavis-Cummings model
title_sort finite temperature dynamics of the holstein-tavis-cummings model
publishDate 2024
url https://hdl.handle.net/10356/174861
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