TY - JOUR N1 - © 2006 The American Physical Society IS - 23 TI - Nonequilibrium quantum condensation in an incoherently pumped dissipative system AV - public VL - 96 Y1 - 2006/06/16/ JF - Physical Review Letters A1 - Szyma?ska, MH A1 - Keeling, J A1 - Littlewood, PB ID - discovery1398707 N2 - 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. SN - 0031-9007 UR - http://dx.doi.org/10.1103/PhysRevLett.96.230602 ER -