Energy constrained sandpile models

Title:
Energy constrained sandpile models
Creator:
Chessa, A (Author)
Marinari, E (Author)
Vespignani, A (Author)
Language:
English
Publisher:
American Physical Society
Copyright date:
1998
Type of resource:
Text
Genre:
Articles
Format:
electronic
Digital origin:
born digital
Abstract/Description:
We study two driven dynamical systems with conserved energy. The two automata contain the basic dynamical rules of the Bak, Tang, and Wiesenfeld sandpile model. In addition a global constraint on the energy contained in the lattice is imposed. In the limit of an infinitely slow driving of the system, the conserved energy E becomes the only parameter governing the dynamical behavior of the system. Both models show scale-fret behavior at a critical value E-c of the fixed energy. The scaling with respect to the relevant scaling field points out that the developing of critical correlations is in a different universality class than self-organized critical sandpiles. Despite this difference, the activity (avalanche) probability distributions appear to coincide with the one of the standard self-organized critical sandpile.
Comments:
Originally published in Physical Review Letters, v.80 no.19 (1998), pp.4217-4220. DOI:10.1103/PhysRevLett.80.4217. Dr. Vespignani is affiliated with Northeastern University as of the time of deposit.
Subjects and keywords:
Dynamics
sandpile models
driven dynamical systems
conserved energy
Physics

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