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Название: Comparison of Finite Volume Canonical and Grand Canonical Gibbs Measures: The Continuous Case
Авторы: Cancrini N., Tremoulet C.
Journal of Statistical Physics, Vol. 117, Nos. 5/6, December 2004. p. 1023-1046.
We consider a continuous gas with ﬁnite range positive pair potential and we assume that the cluster expansion convergence condition holds. We prove a sharp bound on the difference between the ﬁnite volume grand canonical and canonical expectation of local observable. The bound is given in terms of the support of the observable, of its grand canonical variance and of the volume on which the system is conﬁned.