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Название: A Cluster Expansion for Stochastic Lattice Fields
Автор: Dimock J.
Journal of Statistical Physics, Vol. 58, Nos. 5/6, 1990. p. 1181-1207.
A Langevin equation of Landau-Ginzburg type for the stochastic dynamics of a scalar field on a lattice is studied. A cluster expansion is developed for this problem which converges for large mass. As a consequence, one establishes uniformly in the volume: (a) exponential decay of correlations in space and time, and (b) exponential approach to equilibrium for a class of nearby initial distributions.