Multiphoton interaction of a qutrit with single-mode quantized field in the ultrastrong and deep strong coupling regimes

Hamlet K. Avetissian; Ara K. Avetissian; Garnik F. Mkrtchian; Oleg V. Kibis

doi:10.1117/1.JNP.9.093064

23 July 2015 Multiphoton interaction of a qutrit with single-mode quantized field in the ultrastrong and deep strong coupling regimes

Hamlet K. Avetissian, Ara K. Avetissian, Garnik F. Mkrtchian, Oleg V. Kibis

Author Affiliations +

Journal of Nanophotonics, Vol. 9, Issue 1, 093064 (July 2015). https://doi.org/10.1117/1.JNP.9.093064

Abstract

We consider the multiphoton dynamics of a quantum system composed of a three-state atom (a qutrit) and a single-mode photonic field in the ultrastrong and deep strong coupling regimes, when the coupling strength is comparable to or larger than the oscillator energy scale. We assume a qutrit to be in a L configuration, where an upper level is coupled to a twofold degenerate lower level. Direct multiphoton resonant transitions revealing generalized Rabi oscillations, collapse, and revivals in atomic excitation probabilities for the ultrastrong couplings are studied. In the deep strong coupling regime, particular emphasis is placed on the ground state of the considered system which strictly exhibits nonclassical properties.

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Hamlet K. Avetissian, Ara K. Avetissian, Garnik F. Mkrtchian, and Oleg V. Kibis "Multiphoton interaction of a qutrit with single-mode quantized field in the ultrastrong and deep strong coupling regimes," Journal of Nanophotonics 9(1), 093064 (23 July 2015). https://doi.org/10.1117/1.JNP.9.093064

Published: 23 July 2015

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