Van Velzen, G. A.Ernst, M. H.Brito López, Ricardo2023-06-202023-06-201993-020022-4715https://hdl.handle.net/20.500.14352/58605The complete time dependence of the stress-stress correlation functions in lattice gas cellular automata is calculated from the ring kinetic theory using numerical and analytical methods. This provides corrections, typically of 10-20%, to the usual molecular chaos calculations, where correlation functions decay exponentially. The resulting correlation function crosses over from an initial exponential decay to the long-time behavior calculated from mode coupling theory. The present theory, applied to the viscosity, accounts for a substantial part of the observed difference between the Boltzmann theory and simulations.journal articlemetadata only access536Velocity Autocorrelation FunctionCellular-Automata FluidsMode-Coupling TheoryLong-Time TailsFaster-Than-T-1 DecayTermodinámica2213 Termodinámica