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Reduced Markov chains at stochastic spin models

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  • Falk, H.

Abstract

From Glauber's stochastic spin model in discrete time, reduced Markov-chain models are constructed. The transition matrices of the reduced models utilize equilibrium correlation functions of the full N-spin system; however, the reduced models involve the time-dependent behavior of only a cluster of spins. The reduced models have as an invariant vector the exact marginal equilibrium probability for the spins in the cluster. In that sense, the reduced models have the same equilibrium as the N-spin Glauber model, but will, in general, display a different time dependence. One of the reduced models is solved exactly here for a one-dimensional lattice, a square lattice, and a simple-cubic lattice.

Suggested Citation

  • Falk, H., 1983. "Reduced Markov chains at stochastic spin models," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 119(3), pages 580-590.
  • Handle: RePEc:eee:phsmap:v:119:y:1983:i:3:p:580-590
    DOI: 10.1016/0378-4371(83)90110-3
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