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arXiv:cond-mat/0603447 · Physical Review Letters

Nonequilibrium Quantum Condensation in an Incoherently Pumped Dissipative System

Marzena Hanna Szymańska, Jonathan Keeling, P. B. Littlewood

Published Jun 12, 2006• 309 citations
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Abstract

We study spontaneous quantum coherence in an out of an 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.

DOI
10.1103/physrevlett.96.230602

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