Lasing in circuit quantum electrodynamics with strong noise

Abstract

We study a model which can describe a superconducting single electron transistor (SSET) or a double quantum dot coupled to transmission-line oscillator. In both cases the degree of freedom is given by a charged particle, which couples strongly to the electromagnetic environment or phonons. We consider the case where a lasing condition is established and study the dependence of the average photon number in the resonator on the spectral function of the electromagnetic environment. We focus on three important cases: a strongly coupled environment with a small cut-off frequency, a structured environment peaked at a specific frequency and 1/f-noise. We find that the electromagnetic environment can have a substantial impact on the photon creation. Resonance peaks are in general broadened and additional resonances can appear.

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• Probing two driven double quantum dots strongly coupled to a cavity
• Lasing and transport in a multi-level double quantum dot system coupled to a microwave oscillator
• Diagrammatic description of a system coupled strongly to a bosonic bath