Corral, ÁlvaroPérez-Vicente, Conrado, 1962-Díaz Guilera, Albert2010-06-252010-06-2519970031-9007https://hdl.handle.net/2445/13177We 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.4 p.application/pdfeng(c) American Physical Society, 1997Física estadísticaMatèria condensadaFenòmens crítics (Física)Equacions d'estatStatistical physicsCondensed matterCritical phenomena (Physics)Equations of stateinfo:eu-repo/semantics/article117516info:eu-repo/semantics/openAccess