Nonuniversal exponents in sandpiles with stochastic particle number transfer

Details Nonuniversal exponents in sandpiles with stochastic particle number transfer Nonuniversal exponents in sandpiles with stochastic particle number transfer

2004-12-13

arxiv.org/abs/cond-mat/0412322v3

Europhys. Lett. 71, 8 (2005)

Physics

Condensed Matter

Statistical Mechanics

Some parts rewritten, results unchanged. To appear in Europhys. Lett

Scientific paper

10.1209/epl/i2005-10065-7

We study fixed density sandpiles in which the number of particles transferred to a neighbor on relaxing an active site is determined stochastically by a parameter $p$. Using an argument, the critical density at which an active-absorbing transition occurs is found exactly. We study the critical behavior numerically and find that the exponents associated with both static and time-dependent quantities vary continuously with $p$.

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