Pattern formation in a metastable, gradient-driven sandpile

Details Pattern formation in a metastable, gradient-driven sandpile Pattern formation in a metastable, gradient-driven sandpile

2001-03-02

arxiv.org/abs/cond-mat/0103056v3

Physical Review E vol 69, 016115 (2004)

Physics

Condensed Matter

Statistical Mechanics

8 pages, 8 figures. Rewritten version

Scientific paper

10.1103/PhysRevE.69.016115

With a toppling rule which generates metastable sites, we explore the properties of a gradient-driven sandpile that is minimally perturbed at one boundary. In two dimensions we find that the transport of grains takes place along deep valleys, generating a set of patterns as the system approaches the stationary state. We use two versions of the toppling rule to analyze the time behavior and the geometric properties of clusters of valleys, also discussing the relation between this model and the general properties of models displaying self-organized criticality.

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