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Driving, Conservation and Absorbing States in Sandpiles by Vespignani, Alessandro; Dickman, Ronald; Munoz, Miguel A.; Zapperi, Stefano is a scholarly article available to read on EtoBox.

What is Driving, Conservation and Absorbing States in Sandpiles about?

We use a phenomenological field theory, reflecting the symmetries and conservation laws of sandpiles, to compare the driven dissipative sandpile, widely studied in the context of self-organized criticality, with the corresponding fixed-energy model. The latter displays an absorbing-state phase transition with upper critical dimension $d_c=4$. We show that the driven model exhibits a fundamentally different approach to the critical point, and compute a subset of critical exponents. We present numerical simulations in support of our theoretical predictions.

Author

Vespignani, Alessandro; Dickman, Ronald; Munoz, Miguel A.; Zapperi, Stefano

Published

1998

Language

EN