Model and Numerical Simulations
نویسندگان
چکیده
We study numerically the spatial properties of relaxation clusters in a two dimensional sandpile automaton with dynamic rules depending stochastically on a parameter p, which models the eeects of static friction. In the limiting cases p = 1 and p = 0 the model reduces to the critical height model and critical slope model, respectively. At p = p c , a continuous phase transition occurs to the state characterized by a nonzero average slope. Our analysis reveals that the loss of nite average slope at the transition is accompanied by the loss of fractal properties of the relaxation clusters.
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