2026-06-29T02:40:13Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/586052025-04-09T18:11:21Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Van Velzen, G. A. author Ernst, M. H. author Brito López, Ricardo author 1993-02 The 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. 0022-4715 https://hdl.handle.net/20.500.14352/58605 Stress stress correlation-functions in lattice gases beyond Boltzmann approximation