Generalized Dicke model and gauge-invariant master equations for two atoms in ultrastrongly-coupled cavity quantum electrodynamics
نویسندگان
چکیده
We study a generalization of the well-known Dicke model, using two dissimilar atoms in regime ultrastrongly coupled cavity quantum electrodynamics. Our theory uses gauge invariant master equations, which yields consistent results either standard multipolar and Coulomb gauges, including system-bath interactions for open systems. first show how second atom can be treated as sensor to measure output spectrum from single ultrastrong-coupling regime, compare with regression theorem, explaining when they different. then focus on case where is also cavity, but different parameters those atom, introduces complex coupling effects additional resonances spectral features. In particular, we multiple spectra that are visible off-resonance, cannot seen on-resonance rest system. observe clear anti-crossing features particularly pronounced tunes through resonance.
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ژورنال
عنوان ژورنال: Physical review research
سال: 2023
ISSN: ['2643-1564']
DOI: https://doi.org/10.1103/physrevresearch.5.033002