Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-05-21
Phys. Rev. Lett., 88, 054302, (2002)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 5 figures, submitted to Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.88.054302
We introduce a sandpile model where, at each unstable site, all grains are transferred randomly to downstream neighbors. The model is local and conservative, but not Abelian. This does not appear to change the universality class for the avalanches in the self-organized critical state. It does, however, introduce long-range spatial correlations within the metastable states. We find large scale networks of occupied sites whose density vanishes in the thermodynamic limit, for d>1.
Hughes David
Paczuski Maya
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