Self-Organized Criticality Induced by Diversity

Details Self-Organized Criticality Induced by Diversity Self-Organized Criticality Induced by Diversity

1997-01-13

arxiv.org/abs/cond-mat/9701084v1

Physics

Condensed Matter

4 pages, RevTex, includes 4 PostScript figures, Phys. Rev. Lett. (in press)

Scientific paper

10.1103/PhysRevLett.78.1492

We have studied the collective behavior of a population of integrate-and-fire oscillators. We show that diversity, introduced in terms of a random distribution of natural periods, is the mechanism that permits to observe self-organized criticality (SOC) in the long time regime. As diversity increases the system undergoes several transitions from a supercritical regime to a subcritical one, crossing the SOC region. Although there are resemblances with percolation, we give proofs that criticality takes place for a wide range of values of the control parameter instead of a single value.

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