Aging and fluctuation-dissipation ratio in a nonequilibrium q-state lattice model

作者:Hase M O*; Tome T; de Oliveira M J
来源:Physical Review E, 2010, 82(1): 011133.
DOI:10.1103/PhysRevE.82.011133

摘要

A generalized version of the nonequilibrium linear Glauber model with q states in d dimensions is introduced and analyzed. The model is fully symmetric, its dynamics being invariant under all permutations of the q states. Exact expressions for the two-time autocorrelation and response functions on a d-dimensional lattice are obtained. In the stationary regime, the fluctuation-dissipation theorem holds, while in the transient the aging is observed with the fluctuation-dissipation ratio leading to the value predicted for the linear Glauber model.

  • 出版日期2010-7-23