Skip to content

Universality classes in the random-storage sandpile model

Alexei Vazquez, O. Sotolongo-Costa

cond-matarXiv:cond-mat/9811414

Abstract

The avalanche statistics in a stochastic sandpile model where toppling takes place with a probability p is investigated. The limiting case p=1 corresponds to the Bak-Tang-Wiesenfeld (BTW) model with deterministic toppling rule. Based on the moment analysis of the distribution of avalanche sizes we conclude that for 0<p<pc the model belongs to the DP universality class while for pc<p<1 it belongs to the BTW universality class, where pc is identified with the critical probability for directed percolation in the corresponding lattice.

Create a lesson