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Precise toppling balance, quenched disorder, and universality for sandpiles | | R Karmakar
; S S Manna
; A L Stella
; | | Date: |
4 Mar 2005 | | Journal: | Phys Rev Lett, 94 (8), 088002 | | Abstract: | A single sandpile model with quenched random toppling matrices captures the crucial features of different models of self-organized criticality. With symmetric matrices avalanche statistics falls in the multiscaling Bak-Tang-Wiesenfeld universality class. In the asymmetric case the simple scaling of the Manna model is observed. The presence or absence of a precise toppling balance between the amount of sand released by a toppling site and the total quantity the same site receives when all its neighbors topple once determines the appropriate universality class. | | Source: | PubMed, pmid15783937 | | Other source: | [GID 1041984] cond-mat/0312127 | | Services: | Forum | Review | Favorites | |
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