Finite-size scaling calculation of conductivity of three-dimensional conductor-superconductor networks at percolation threshold

The author calculates the conductivity of a random simple cubic network of conductors and superconductors at the bond percolation threshold. He takes into account corrections to scaling with a correction exponent Omega approximately=0.92 and estimate that s/ nu approximately=0.782+or-0.019, where s is the critical exponent that describes the divergence of the conductivity of the network and nu is the critical exponent of percolation correlation length. Conjectured relations which relate s to other percolation exponents are discussed.