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Two-state model of self-organized criticality

S S Manna

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Studies a two-state version of the sandpile model of self-organized criticality. Instead of a critical height of stability as in the sandpile model, the author introduces a hard core repulsion among different particles at the same position. In the case of a collision particles hop randomly to the nearest neighbours. Critical exponents obtained by numerical simulation show strong disagreement with the values theoretically predicted for the sandpile model but they are close to the numerical values of other models.


PACS

05.65.+b Self-organized systems

45.70.Cc Static sandpiles; granular compaction

05.70.Jk Critical point phenomena

MSC

35B33 Critical exponents

Subjects

Statistical physics and nonlinear systems

Dates

Issue 7 (7 April 1991)



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