Two-photon-interaction effects in the bad-cavity limit
Nicolò Piccione, Simone Felicetti, Bruno Bellomo · Physical Review A · 2022
Taking advantage of recently developed adiabatic elimination techniques, the authors investigate two-photon light-matter interactions in a system comprised of an oscillator and a collection of qubits operating in the ``bad-cavity'' regime. They derive a general master equation which unveils some unexpected effects of two-photon couplings, like a richer dependence on temperature of the collective quantum phenomena with respect to the one-photon-coupling case.