FINITE-SIZE SCALING STUDY OF NONEQUILIBRIUM PERCOLATION

Induced by phase separation in the lattice gas model a transient percolation phenomenon occurs for concentrations c exceeding a critical curve c(corr)p(T, t) which depends both on temperature T and on the time t passed after the quench to a state inside the miscibility gap. A finite-size scaling analysis of extensive Monte Carlo data is carried out to locate c(corr)p(T, t) and to show that the critical behaviour of this percolation transition is consistent with random percolation, contrary to previous suggestions.