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Physical Review Letters
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Conservation laws, anisotropy, and self-organized criticality in noisy nonequilibrium systems

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Abstract

It is argued in the context of noisy, nonequilibrium Langevin models that systems with conserving deterministic dynamics and noise which violates the conservation law always exhibit self-organized criticality spatial and temporal correlations that decay algebraically under generic conditions. Systems with both conserving deterministic dynamics and conserving noise require spatial anisotropy to exhibit self-organized criticality. © 1990 The American Physical Society.

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Physical Review Letters

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