Percolation properties and universality class of a multifractal random tiling

摘要

We study percolation as a critical phenomenon on a random multifractal support. The scaling exponent beta related to the mass of the infinite cluster and the fractal dimension of the percolating cluster d(f) are quantities that have the same value as the ones from the standard two-dimensional regular lattice percolation. The scaling exponent nu related to the correlation length is sensitive to the local anisotropy and assumes a value different from standard percolation. We compare our results with those obtained from the percolation on a deterministic multifractal support. The analysis of nu indicates that the deterministic multifractal is more anisotropic than the random multifractal. We also analyze connections with correlated percolation problems and discuss some possible applications.