Scaling laws and simulation results for the self-organized critical forest-fire model.

S. Clar,B. Drossel,F. Schwabl

Published 1994 in Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

ABSTRACT

We discuss the properties of a self--organized critical forest--fire model which has been introduced recently. We derive scaling laws and define critical exponents. The values of these critical exponents are determined by computer simulations in 1 to 8 dimensions. The simulations suggest a critical dimension $d_c=6$ above which the critical exponents assume their mean--field values. Changing the lattice symmetry and allowing trees to be immune against fire, we show that the critical exponents are universal.

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