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Title: Self-organized criticality induced by diversity
Author: Corral, Álvaro
Pérez-Vicente, Conrado, 1962-
Díaz Guilera, Albert
Keywords: Física estadística
Matèria condensada
Fenòmens crítics (Física)
Equacions d'estat
Statistical physics
Condensed matter
Critical phenomena (Physics)
Equations of state
Issue Date: 1997
Publisher: American Physical Society
Abstract: 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.
Note: Reproducció digital del document proporcionada per PROLA i
It is part of: Physical Review Letters, 1997, vol. 78, núm. 8, p. 1492-1495
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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