SELF-ORGANIZED PERCOLATION

We investigate a growth mechanism for percolation clusters where self- organization leads the system to criticality. By controlling the numbe r of sites or bonds in the growth front of the aggregate, the system i s spontaneously driven to a stationary state that corresponds to the p ercolation threshold of the lattice topology and percolation process u sed in the simulation (site or bond percolation). This self-tuning beh avior around a critical state is then discussed with reference to the concept of self-organized criticality. We also suggest that the genera lization of this approach to other controlling rules and lattice,geome tries could explain the occurrence of percolation structures in some p hysical and nonphysical disordered systems.