Journal of Statistical Physics, Vol. 108, Nos. 5/6, September 2002. p. 831-861.
The probability of observing a large deviation (LD) in the number of particles in a region A in a dilute quantum gas contained in a much larger region V is shown to decay as exp[−|A|deltaF], where |A| is the volume of A and deltaF is the change in the appropriate free energy density, the same as in classical systems...