4 papers
Self-organized critical and synchronized states in a nonequilibrium percolation model
Siegfried Clar, Barbara Drossel, Franz Schwabl
We introduce a nonequilibrium percolation model which shows a self-organized critical (SOC) state and several periodic states. In the SOC state, the correlation length diverges slo…
Self-Organized Criticality and Synchronization in the Forest-Fire Model
Barbara Drossel
Depending on the rule for tree growth, the forest-fire model shows either self-organized criticality with rule-dependent exponents, or synchronization, or an intermediate behavior.…
Crossover from Percolation to Self-Organized Criticality
Barbara Drossel, Siegfried Clar, Franz Schwabl
We include immunity against fire as a new parameter into the self-organized critical forest-fire model. When the immunity assumes a critical value, clusters of burnt trees are iden…
Formation of Space-Time Structure in a Forest-Fire Model
B. Drossel, F. Schwabl
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…