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Rare quantum metastable states in the strongly dispersive Jaynes-Cummings oscillator

Mavrogordatos, Th, Barratt, F, Asari, U, Szafulski, P, Ginossar, Eran and Szymanska, M (2018) Rare quantum metastable states in the strongly dispersive Jaynes-Cummings oscillator Physical Review A, 97, 033828.

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We present evidence of metastable rare quantum- uctuation switching for the driven dissipative Jaynes-Cummings (JC) oscillator coupled to a zero-temperature bath in the strongly dispersive regime. We show that single-atom complex amplitude bistability is accompanied by the appearance of a low-amplitude long-lived transient state, hereinafter called `dark state', having a distribution with quasi-Poissonian statistics both for the coupled qubit and cavity mode. We find that the dark state is linked to a spontaneous ipping of the qubit state, detuning the cavity to a low-photon response. The appearance of the dark state is correlated with the participation of the two metastable states in the dispersive bistability, as evidenced by the solution of the Master Equation and single quantum trajectories.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Mavrogordatos, Th
Barratt, F
Asari, U
Szafulski, P
Szymanska, M
Date : 16 March 2018
Funders : EPSRC
DOI : 10.1103/PhysRevA.97.033828
Copyright Disclaimer : Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Uncontrolled Keywords : dark state, dispersive regime, complex amplitude bistability, quantum trajectories, quantum uctuation switching
Depositing User : Melanie Hughes
Date Deposited : 28 Feb 2018 10:37
Last Modified : 11 Dec 2018 11:23

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