Crossover from directed percolation to compact directed percolation

Details Crossover from directed percolation to compact directed percolation Crossover from directed percolation to compact directed percolation

1996-05-27

arxiv.org/abs/cond-mat/9605167v1

Physics

Condensed Matter

4 pages, Revtex, 5 figures postscript

Scientific paper

10.1103/PhysRevE.54.R3071

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.

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