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Название: Phase Transitions and Universality in Nonequilibrium Steady States of Stochastic Ising Models
Авторы: Wang J.-S., Lebowitz J.L.
We present results of direct computer simulations and of Monte Carlo renorrealization group (MCRG) studies of the nonequilibrium steady states of a spin system with competing dynamics and of the voter model. The MCRG method, previously used only for equilibrium systems, appears to give useful information also for these nonequilibrium systems. The critical exponents are found to be of Ising type for the competing dynamics model at its second-order phase transitions, and of mean-field type for the voter model (consistent with known results for the latter).