Non-equilibrium quantum condensation in an incoherently pumped dissipative system

Details Non-equilibrium quantum condensation in an incoherently pumped dissipative system Non-equilibrium quantum condensation in an incoherently pumped dissipative system

2006-03-16

arxiv.org/abs/cond-mat/0603447v1

Phys. Rev. Lett. 96 230602 (2006)

Physics

Condensed Matter

Superconductivity

5 pages, 2 eps figures

Scientific paper

10.1103/PhysRevLett.96.230602

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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