Directed Fixed Energy Sandpile Model
arXiv:cond-mat/0404526 · doi:10.1103/PhysRevE.69.067107
Abstract
We numerically study the directed version of the fixed energy sandpile. On a closed square lattice, the dynamical evolution of a fixed density of sand grains is studied. The activity of the system shows a continuous phase transition around a critical density. While the deterministic version has the set of nontrivial exponents, the stochastic model is characterized by mean field like exponents.
5 pages, 6 figures, to be published in Phys. Rev. E