Randmoness and Step-like Distribution of Pile Heights in Avalanche Models

Details Randmoness and Step-like Distribution of Pile Heights in Avalanche Models Randmoness and Step-like Distribution of Pile Heights in Avalanche Models

2006-05-29

arxiv.org/abs/cond-mat/0605705v1

Physics

Condensed Matter

Statistical Mechanics

5 pages, 5 figures

Scientific paper

10.1140/epjb/e2007-00293-1

The paper develops one-parametric family of the sand-piles dealing with the grains' local losses on the fixed amount. The family exhibits the crossover between the models with deterministic and stochastic relaxation. The mean height of the pile is destined to describe the crossover. The height's densities corresponding to the models with relaxation of the both types tend one to another as the parameter increases. These densities follow a step-like behaviour in contrast to the peaked shape found in the models with the local loss of the grains down to the fixed level [S. Lubeck, Phys. Rev. E, 62, 6149, (2000)]. A spectral approach based on the long-run properties of the pile height considers the models with deterministic and random relaxation more accurately and distinguishes the both cases up to admissible parameter values.

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