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Self-organized criticality induced by diversity Corral, Álvaro Pérez-Vicente, Conrado, 1962- Díaz Guilera, Albert Física estadística Matèria condensada Fenòmens crítics (Física) Equacions d'estat Statistical physics Condensed matter Critical phenomena (Physics) Equations of state 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 one 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. 2010-06-25T08:40:48Z 2010-06-25T08:40:48Z 1997 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0031-9007 https://hdl.handle.net/2445/13177 117516 eng Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.78.1492 Physical Review Letters, 1997, vol. 78, núm. 8, p. 1492-1495 http://dx.doi.org/10.1103/PhysRevLett.78.1492 (c) American Physical Society, 1997 info:eu-repo/semantics/openAccess 4 p. application/pdf American Physical Society Articles publicats en revistes (Física de la Matèria Condensada)