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Simple Model of Self-Organized Biological Evolution

URN to cite this document:
de Boer, Jan ; Derrida, Bernard ; Flyvbjerg, Henrik ; Jackson, Andrew D. ; Wettig, Tilo
Date of publication of this fulltext: 05 Aug 2009 13:58


We give an exact solution of a recently proposed self-organized critical model of biological evolution. We show that the model has a power law distribution of durations of coevolutionary "avalanches" with a mean field exponent 3/2. We also calculate analytically the finite size effects which cut off this power law at times of the order of the system size.

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