Nonuniversality in short-time critical dynamics
Statistical Mechanics
2009-10-31 v1
Abstract
We study behaviour of dynamical critical exponents of the two-dimensional Ising model with a line of defects. Simulations done at an early time (first 100 Monte Carlo steps) reveal that the critical exponent of Janssen et al (Z. Phys. B 73 539) depends on the strength of the exchange coupling constant (J') of the altered line. On the other hand, our simulations permit us to conclude that the dynamical critical exponent z is not sensitive to changes in J'. In adition, we investigate the possible invariance of the anomalous dimension of the magnetization at the beginning of the process.
Cite
@article{arxiv.cond-mat/9810105,
title = {Nonuniversality in short-time critical dynamics},
author = {C. S. Simoes and J. R. Drugowich de Felicio},
journal= {arXiv preprint arXiv:cond-mat/9810105},
year = {2009}
}
Comments
8 figures