Ultrastrong coupling effects in molecular cavity QED

Ultrastrong coupling effects in molecular cavity QED

The spectrum and energy dynamics for a system that comprises a molecule interacting with a cavity photon is analyzed, taking into account the effect of both molecular vibrations and counter-rotating terms (CR) in the dipole Hamiltonian. The CR terms do not have a strong effect on the spectrum even f...

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Main Authors: Calvo Jorge, Zueco David, Martin-Moreno Luis
Format: Article
Language:English
Published: De Gruyter 2020-02-01
Series:Nanophotonics
Subjects:
ultrastrong coupling
molecule
cavity quantum electrodynamics
rabi oscillations
Online Access:https://doi.org/10.1515/nanoph-2019-0403
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spelling doaj-b71ecfcc29474123a525c702396a69e02021-09-06T19:20:33ZengDe GruyterNanophotonics2192-86142020-02-019227728110.1515/nanoph-2019-0403nanoph-2019-0403Ultrastrong coupling effects in molecular cavity QEDCalvo Jorge0Zueco David1Martin-Moreno Luis2Instituto de Ciencia de Materiales de Aragón, Departamento de Fsica de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50 009 Zaragoza, SpainInstituto de Ciencia de Materiales de Aragón, Departamento de Fsica de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50 009 Zaragoza, SpainInstituto de Ciencia de Materiales de Aragón, Departamento de Fsica de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50 009 Zaragoza, SpainThe spectrum and energy dynamics for a system that comprises a molecule interacting with a cavity photon is analyzed, taking into account the effect of both molecular vibrations and counter-rotating terms (CR) in the dipole Hamiltonian. The CR terms do not have a strong effect on the spectrum even for moderately large values of the exciton-photon interaction. However, it is shown that the polariton subspace is governed by an effective Quantum-Rabi Hamiltonian, where polaritons act as a two-level system and the phonons play the role of cavity photons. The effect of the CR terms is amplified in the dynamics: as the vibrations reduce the effective photon-exciton coupling, small Bloch-Siegert energy shifts can bring the system out of resonance.https://doi.org/10.1515/nanoph-2019-0403ultrastrong couplingmoleculecavity quantum electrodynamicsrabi oscillations
collection DOAJ
language English
format Article
sources DOAJ
author Calvo Jorge
Zueco David
Martin-Moreno Luis
spellingShingle Calvo Jorge
Zueco David
Martin-Moreno Luis
Ultrastrong coupling effects in molecular cavity QED
Nanophotonics
ultrastrong coupling
molecule
cavity quantum electrodynamics
rabi oscillations
author_facet Calvo Jorge
Zueco David
Martin-Moreno Luis
author_sort Calvo Jorge
title Ultrastrong coupling effects in molecular cavity QED
title_short Ultrastrong coupling effects in molecular cavity QED
title_full Ultrastrong coupling effects in molecular cavity QED
title_fullStr Ultrastrong coupling effects in molecular cavity QED
title_full_unstemmed Ultrastrong coupling effects in molecular cavity QED
title_sort ultrastrong coupling effects in molecular cavity qed
publisher De Gruyter
series Nanophotonics
issn 2192-8614
publishDate 2020-02-01
description The spectrum and energy dynamics for a system that comprises a molecule interacting with a cavity photon is analyzed, taking into account the effect of both molecular vibrations and counter-rotating terms (CR) in the dipole Hamiltonian. The CR terms do not have a strong effect on the spectrum even for moderately large values of the exciton-photon interaction. However, it is shown that the polariton subspace is governed by an effective Quantum-Rabi Hamiltonian, where polaritons act as a two-level system and the phonons play the role of cavity photons. The effect of the CR terms is amplified in the dynamics: as the vibrations reduce the effective photon-exciton coupling, small Bloch-Siegert energy shifts can bring the system out of resonance.
topic ultrastrong coupling
molecule
cavity quantum electrodynamics
rabi oscillations
url https://doi.org/10.1515/nanoph-2019-0403
work_keys_str_mv AT calvojorge ultrastrongcouplingeffectsinmolecularcavityqed
AT zuecodavid ultrastrongcouplingeffectsinmolecularcavityqed
AT martinmorenoluis ultrastrongcouplingeffectsinmolecularcavityqed
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