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Self-organized criticality in the olami-feder-christensen model | | de Carvalho JX
; C P Prado
; | | Date: |
24 Apr 2000 | | Journal: | Phys Rev Lett, 84 (17), 4006-9 | | Abstract: | A system is in a self-organized critical state if the distribution of some measured events obeys a power law. The finite-size scaling of this distribution with the lattice size is usually enough to assume that the system displays self-organized criticality. This approach, however, can be misleading. In this paper we analyze the behavior of the branching rate sigma of the events to establish whether a system is in a critical state. We apply this method to the Olami-Feder-Christensen model to obtain evidence that, in contrast to previous results, the model is critical in the conservative regime only. | | Source: | PubMed, pmid11019261 | | Services: | Forum | Review | Favorites | |
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