Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1998-05-22
Int. J. Mod. Phys. C, 10 (1999) 853.
Physics
Condensed Matter
Statistical Mechanics
12 pages, 14 PS figures, RevTeX; extensively revised
Scientific paper
We study the standard three-dimensional driven diffusive system on a simple cubic lattice where particle jumps along a given lattice direction are biased by an infinitely strong field, while those along other directions follow the usual Kawasaki dynamics. Our goal is to determine which of the several existing theories for critical behavior is valid. We analyze finite-size scaling properties using a range of system shapes and sizes far exceeding previous studies. Four different analytic predictions are tested against the numerical data. Binder and Wang's prediction does not fit the data well. Among the two slightly different versions of Leung, the one including the effects of a dangerous irrelevant variable appears to be better. Recently proposed isotropic finite-size scaling is inconsistent with our data from cubic systems, where systematic deviations are found, especially in scaling at the critical temperature.
Leung Kwan-tai
Wang Jian-Sheng
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