M ar 2 00 4 On the thresholds , probability densities , and critical exponents of Bak-Sneppen-like models


We report a simple method to accurately determine the threshold and the exponent ν of the Bak-Sneppen model and also investigate the BS universality class. For the random-neighbor version of the BS model, we find the threshold x = 0.33332(3), in agreement with the exact result x = 1/3 given by mean-field theory. For the one-dimensional original model, we… (More)

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