M. Dzugutov et al., UNIVERSAL RELATION BETWEEN THE KOLMOGOROV-SINAI ENTROPY AND THE THERMODYNAMICAL ENTROPY IN SIMPLE LIQUIDS, Physical review letters, 81(9), 1998, pp. 1762-1765
We report computation of the Kolmogorov-Sinai entropy in a variety of
simple liquids studied by molecular dynamics. It is found that this qu
antity, when expressed in terms of the atomic collision frequency, is
uniquely related to the thermodynamic excess entropy by a universal li
near scaling law. We also present a simple probabilistic model for rel
axation in condensed atomic systems in which the observed scaling rela
tion arises naturally.