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Non-equilibrium quantum condensation in an incoherently pumped dissipative system

M. H. Szymanska·J. Keeling·P. B. Littlewood
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Abstract

We study spontaneous quantum coherence in an out of equilibrium system, coupled to multiple baths describing pumping and decay. For a range of parameters describing coupling to, and occupation of the baths, a stable steady-state condensed solution exists. The presence of pumping and decay significantly modifies the spectra of phase fluctuations, leading to correlation functions that differ both from an isolated condensate and from a laser.

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M. H. Szymanska, J. Keeling, P. B. Littlewood. 2006-03-16. Non-equilibrium quantum condensation in an incoherently pumped dissipative system. https://doi.org/10.1103/physrevlett.96.230602

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