Universality classes in directed sandpile models

Details Universality classes in directed sandpile models Universality classes in directed sandpile models

1999-07-20

arxiv.org/abs/cond-mat/9907307v2

J. Phys. A: Math. Gen 33, L33 (2000)

Physics

Condensed Matter

Statistical Mechanics

5 pages, RevTex, includes 9 EPS figures. Minor english corrections. One reference added

Scientific paper

10.1088/0305-4470/33/3/101

We perform large scale numerical simulations of a directed version of the two-state stochastic sandpile model. Numerical results show that this stochastic model defines a new universality class with respect to the Abelian directed sandpile. The physical origin of the different critical behavior has to be ascribed to the presence of multiple topplings in the stochastic model. These results provide new insights onto the long debated question of universality in abelian and stochastic sandpiles.

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