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Fast realization of a spatially correlated percolation model

We propose two schemes to achieve fast realizations of spatially correlated percolation models. The schemes are shown to be efficient in complementary regimes of correlation phase space. They are combined with a generalized Newman-Ziff algorithm to numerically determine the percolation thresholds of two-dimensional lattices in the presence of correlations. It is found that the spatial correlations affect only a relatively small part of phase space.