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

Abstract

We present evidence of metastable rare quantum-fluctuation switching for the driven dissipative Jaynes-Cummings 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 flipping 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.

Extensively revised text, 18 revised figures (16 in main and 2 in appendix), 38(+1) references, appendix

References in corpus (6)

• Charge insensitive qubit design derived from the Cooper pair box
• Dispersive regime of circuit QED: photon-dependent qubit dephasing and relaxation rates
• Nonlinear response of the vacuum Rabi resonance
• Response of the Strongly-Driven Jaynes-Cummings Oscillator
• Simultaneous bistability of qubit and resonator in circuit quantum electrodynamics
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Cited by in corpus (2)

• Critical slowing down in the bistable regime of circuit quantum electrodynamics
• Driving-induced resonance narrowing in a strongly coupled cavity-qubit system