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.
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28 February 2024
Research Article|
February 29 2024
Finite temperature dynamics of the Holstein–Tavis–Cummings model Available to Purchase
Erqin Hou;
Erqin Hou
(Investigation, Methodology, Software, Writing – original draft)
1
School of Science, Hangzhou Dianzi University
, Hangzhou 310018, China
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Kewei Sun
;
Kewei Sun
(Conceptualization, Funding acquisition, Investigation, Methodology, Software, Supervision, Writing – original draft, Writing – review & editing)
1
School of Science, Hangzhou Dianzi University
, Hangzhou 310018, China
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Maxim F. Gelin
;
Maxim F. Gelin
(Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing)
1
School of Science, Hangzhou Dianzi University
, Hangzhou 310018, China
2
School of Materials Science and Engineering, Nanyang Technological University
, Singapore 639798, Singapore
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Yang Zhao
Yang Zhao
a)
(Conceptualization, Funding acquisition, Methodology, Writing – review & editing)
2
School of Materials Science and Engineering, Nanyang Technological University
, Singapore 639798, Singapore
a)Author to whom correspondence should be addressed: [email protected]
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Erqin Hou
1
Kewei Sun
1
Maxim F. Gelin
1,2
Yang Zhao
2,a)
1
School of Science, Hangzhou Dianzi University
, Hangzhou 310018, China
2
School of Materials Science and Engineering, Nanyang Technological University
, Singapore 639798, Singapore
a)Author to whom correspondence should be addressed: [email protected]
J. Chem. Phys. 160, 084116 (2024)
Article history
Received:
December 22 2023
Accepted:
February 05 2024
Citation
Erqin Hou, Kewei Sun, Maxim F. Gelin, Yang Zhao; Finite temperature dynamics of the Holstein–Tavis–Cummings model. J. Chem. Phys. 28 February 2024; 160 (8): 084116. https://doi.org/10.1063/5.0193471
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