Lasing in circuit quantum electrodynamics with strong noise

M. Marthaler, Y. Utsumi, D. S. Golubev

Research output: Contribution to journalArticleScientificpeer-review

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We study a model which can describe a superconducting single-electron transistor or a double quantum dot coupled to a 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 cutoff 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.
Original languageEnglish
Article number184515
Pages (from-to)1-13
JournalPhysical Review B
Issue number18
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed


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