PHASE TRANSITION IN A NONEQUILIBRIUM POTTS MODEL WITH COMPETING DYNAMICS: A MONTE-CARLO STUDY
GUO WEN-AN (郭文安)a, YANG ZHAN-RU (杨展如)ab
a Department of Physics and Institute of Theoretical Physics, Beijing Normal University, Beijing 100875, China; bChina Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080, China
Abstract The nonequilibrium steady state of three-state Potts model evolving under combined Glauber dynamics at temperature $\beta$-1 and Kawasaki dynamics at $\beta$′= 0 is studied by Monte-Carlo simulations. As the exchange rate p increases, the phase transition changes from second to first order. The critical exponents of second-order transition are independent of p, and the critical properties for different p belong to the same universality class.
Received: 15 December 1995
Accepted manuscript online:
Fund: Project supported in part by the National Basic Research Project "Nonlinear Science" of China and by the State Education Commission Grant for doctor study.
Cite this article:
GUO WEN-AN (郭文安), YANG ZHAN-RU (杨展如) PHASE TRANSITION IN A NONEQUILIBRIUM POTTS MODEL WITH COMPETING DYNAMICS: A MONTE-CARLO STUDY 1997 Acta Physica Sinica (Overseas Edition) 6 35
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