Formation of Space-Time Structure in a Forest-Fire Model

Details Formation of Space-Time Structure in a Forest-Fire Model Formation of Space-Time Structure in a Forest-Fire Model

1993-10-26

arxiv.org/abs/cond-mat/9310059v1

Physics

Condensed Matter

20 pages REVTEX, 9 figures upon request

Scientific paper

10.1016/0378-4371(94)90426-X

We present a general stochastic forest-fire model which shows a variety of different structures depending on the parameter values. The model contains three possible states per site (tree, burning tree, empty site) and three parameters (tree growth probability $p$, lightning probability $f$, and immunity $g$). We review analytic and computer simulation results for a quasideterministic state with spiral-shaped fire fronts, for a percolation-like phase transition and a self-organized critical state. Possible applications to excitable systems are discussed.

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