Damage spreading in 2-dimensional isotropic and anisotropic Bak-Sneppen models

B. Bakar () and U. Tirnakli ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2008, vol. 62, issue 1, 95-99

Abstract: We implement the damage spreading technique on 2-dimensional isotropic and anisotropic Bak-Sneppen models. Our extensive numerical simulations show that there exists a power-law sensitivity to the initial conditions at the statistically stationary state (self-organized critical state). Corresponding growth exponent α for the Hamming distance and the dynamical exponent z are calculated. These values allow us to observe a clear data collapse of the finite size scaling for both versions of the Bak-Sneppen model. Moreover, it is shown that the growth exponent of the distance in the isotropic and anisotropic Bak-Sneppen models is strongly affected by the choice of the transient time. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Keywords: 05.65.+b Self-organized systems; 64.60.Ht Dynamic critical phenomena; 87.23.Kg Dynamics of evolution (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1140/epjb/e2008-00124-y

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