1/f-noise in the Bak-Sneppen model
Abstract
We calculate time correlation functions in the Bak-Sneppen model (Phys. Rev. Lett. 71 4083 (1993)), a model showing self-organised criticality. For a random neighbour version of the model, analytical results are presented, while on a one dimensional lattice we give numerical results. The power spectrum of these correlation functions shows 1/f- behaviour in both cases.
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