Criticality in driven cellular automata with defects

Bosiljka Tadic; Ramakrishna Ramaswamy

doi:10.1016/0378-4371(95)00322-3

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Criticality in driven cellular automata with defects

Bosiljka Tadic·Ramakrishna Ramaswamy

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Abstract

We study three models of driven sandpile-type automata in the presence of quenched random defects. When the dynamics is conservative, all these models, termed the random sites (A), random bonds (B), and random slopes (C), self-organize into a critical state. For Model C the concentration-dependent exponents are nonuniversal. In the case of nonconservative defects, the asymptotic state is subcritical. Possible defect-mediated nonequilibrium phase transitions are also discussed.

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Bosiljka Tadic, Ramakrishna Ramaswamy. 1995-12-07. Criticality in driven cellular automata with defects. https://doi.org/10.1016/0378-4371(95)00322-3

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