A simple sandpile model of active-absorbing state transitions

Abstract

We study a simple sandpile model of active-absorbing state transitions in which a particle can hop out of a site only if the number of particles at that site is above a certain threshold. We show that the active phase has product measure whereas nontrivial correlations are found numerically in the absorbing phase. It is argued that the system relaxes to the latter phase slower than exponentially. The critical behavior of this model is found to be different from that of the other known universality classes.

Revised version. To appear in Phys. Rev. E

References in corpus (2)

• Langevin theory of absorbing phase transitions with a conserved magnitude
• Generic slow relaxation in a stochastic sandpile

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