Phase locking in quantum and classical oscillators: polariton condensates, lasers, and arrays of Josephson junctions
P. R. Eastham, M. H. Szymanska, P. B. Littlewood
Abstract
We connect three phenomena in which a coherent electromagnetic field could be generated: polariton condensation, phase-locking in arrays of underdamped Josephson junctions, and lasing. All these phenomena have been described using Dicke-type models of spins coupled to a single photon mode. These descriptions may be distinguished by whether the spins are quantum or classical, and whether they are strongly or weakly damped.
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