Time correlations of a laser-induced Bose-Einstein condensate
  We analyze the multi-time correlations of a laser-induced Bose-Einstein condensate. We use quantum stochastic methods to obtain under certain circumstances a Fokker-Planck equation which describes the phase-difussion process, and obtain an analytical expression of the two-time correlations. We perform also quantum Monte Carlo numerical simulations of the correlations, which are in good agreement with the predicted analytical results. 
T. Felbinger, L. Santos, M. Wilkens and M. Lewenstein