RT Journal Article
T1 Velocity autocorrelation function in lattice gases from the ring kinetic-theory - comparison with numerical simulations
A1 Van Velzen, G. A.
A1 Brito López, Ricardo
AB We obtain the complete time dependence of the velocity autocorrelation function (VACF) for lattice gas cellular automata, using ring kinetic theory. This theory accounts for the simplest correlated collisions that improve on the molecular chaos approach, and yields a closed equation for the VACF that we evaluate for both infinite and finite systems. We compare our analytical results with numerical simulations at all times, as well as with long-time results of the mode coupling theories, finding a Very good agreement for all times at all densities.
PB Springer
SN 0022-4715
YR 1995
FD 1995-08
LK https://hdl.handle.net/20.500.14352/58593
UL https://hdl.handle.net/20.500.14352/58593
DS Docta Complutense
RD 17 abr 2025