Crossover from directed percolation to compact directed percolation
Condensed Matter
2009-10-28 v1
Abstract
We study critical spreading in a surface-modified directed percolation model in which the left- and right-most sites have different occupation probabilities than in the bulk. As we vary the probability for growth at an edge, the critical exponents switch from the compact directed percolation class to ordinary directed percolation. We conclude that the nonuniversality observed in models with multiple absorbing configurations cannot be explained as a simple surface effect.
Cite
@article{arxiv.cond-mat/9605167,
title = {Crossover from directed percolation to compact directed percolation},
author = {J. F. F. Mendes and R. Dickman and H. Herrmann},
journal= {arXiv preprint arXiv:cond-mat/9605167},
year = {2009}
}
Comments
4 pages, Revtex, 5 figures postscript