Universal model of strong coupling at the nonlinear resonance in open cavity-QED systems

Mikhail Tokman, Maria Erukhimova, Qianfan Chen, and Alexey Belyanin
Phys. Rev. A 105, 053707 – Published 10 May 2022

Abstract

Many molecular, quantum-dot, and optomechanical nanocavity-QED systems demonstrate strong nonlinear interactions between electrons, photons, and phonon (vibrational) modes. We show that such systems can be described by a universal model in the vicinity of the nonlinear resonance involving all three degrees of freedom. We solve the nonperturbative quantum dynamics in the strong-coupling regime of the nonlinear resonance, taking into account quantization, dissipation, and fluctuations of all fields. We find analytic solutions for quantum states in the rotating-wave approximation which demonstrate tripartite quantum entanglement once the strong-coupling regime is reached. We show how the strong coupling at the nonlinear resonance modifies photon emission and vibrational spectra, and how the observed spectra can be used to extract information about relaxation rates and the nonlinear coupling strength in specific systems.

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  • Received 20 December 2021
  • Accepted 2 May 2022

DOI:https://doi.org/10.1103/PhysRevA.105.053707

©2022 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalQuantum Information, Science & Technology

Authors & Affiliations

Mikhail Tokman1, Maria Erukhimova1, Qianfan Chen2, and Alexey Belyanin2

  • 1Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, 603950, Russia
  • 2Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA

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Issue

Vol. 105, Iss. 5 — May 2022

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