A Study of Two-Temperature Non-Equilibrium Ising Models: Critical Behavior and Universality

Details A Study of Two-Temperature Non-Equilibrium Ising Models: Critical Behavior and Universality A Study of Two-Temperature Non-Equilibrium Ising Models: Critical Behavior and Universality

1994-07-08

arxiv.org/abs/cond-mat/9407046v1

Physics

Condensed Matter

12 pages of LaTeX plus 18 pages of postscript figures in a uuencoded file (608k)

Scientific paper

10.1103/PhysRevE.50.3474

We study a class of 2D non-equilibrium Ising models based on competing dynamics induced by contact with heat-baths at two different temperatures. We make a comparative study of the non-equilibrium versions of Metropolis, heat bath/Glauber and Swendsen-Wang dynamics and focus on their critical behavior in order to understand their universality classes. We present strong evidence that some of these dynamics have the same critical exponents and belong to the same universality class as the equilibrium 2D Ising model. We show that the bond version of the Swendsen-Wang update algorithm can be mapped into an equilibrium model at an effective temperature.

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