Critical Behavior of Sandpile Models with Sticky Grains

Details Critical Behavior of Sandpile Models with Sticky Grains Critical Behavior of Sandpile Models with Sticky Grains

2007-04-17

arxiv.org/abs/0704.2142v1

Physica A 384, 34 (2007)

Physics

Condensed Matter

Statistical Mechanics

8 pages, 3 eps figures, accepted in Physica A, elsart.cls attached

Scientific paper

10.1016/j.physa.2007.04.117

We revisit the question whether the critical behavior of sandpile models with sticky grains is in the directed percolation universality class. Our earlier theoretical arguments in favor, supported by evidence from numerical simulations [ Phys. Rev. Lett., {\bf 89} (2002) 104303], have been disputed by Bonachela et al. [Phys. Rev. E {\bf 74} (2004) 050102] for sandpiles with no preferred direction. We discuss possible reasons for the discrepancy. Our new results of longer simulations of the one-dimensional undirected model fully support our earlier conclusions.

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