Correlation effects in the diffusion and electrical conductivity of an interacting lattice gas

A simple and effective self-consistent scheme is proposed for the determina tion of the average potentials which allows thermodynamic functions and oth er characteristics of lattice systems in equilibrium to be calculated with high accuracy and short computing time. This scheme has been used for analy sis of the expressions for the coefficients of diffusion and electrical con ductivity obtained on the basis of the modern statistical theory of nonequi librium processes. Results of the simulations are correlated with the data of Monte Carlo simulations obtained using parallel vector algorithms on a C ray TZE computer of the Max Plank Society (Germany). (C) 2000 MAIK "Nauka/ Interperiodica".