期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 388, 期 20, 页码 4379-4386出版社
ELSEVIER
DOI: 10.1016/j.physa.2009.07.004
关键词
Monte Carlo simulations; Dynamic critical exponents; Out-of-equilibrium systems; Non-Markovian process; Universality class
资金
- CAPES
- CNPq
- FAPESP
We investigate the short-time critical dynamics of the Baxter-Wu (BW) and n = 3 Turban (3TU) models to estimate their global persistence exponent theta(g). We conclude that this new dynamical exponent can be useful in detecting differences between the critical behavior of these models which are very difficult to obtain in usual simulations. In addition, we estimate again the dynamical exponents of the four-state Potts (FSP) model in order to compare them with results previously obtained for the BW and 3TU models and to decide between two sets of estimates presented in the current literature. We also revisit the short-time dynamics of the 3TU model in order to check if, as already found for the FSP model, the anomalous dimension of the initial magnetization x(0) could be equal to zero. (C) 2009 Elsevier B.V. All rights reserved.
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