UNIVERSAL RELATION BETWEEN THE KOLMOGOROV-SINAI ENTROPY AND THE THERMODYNAMICAL ENTROPY IN SIMPLE LIQUIDS

Citation
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
Citations number
27
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
81
Issue
9
Year of publication
1998
Pages
1762 - 1765
Database
ISI
SICI code
0031-9007(1998)81:9<1762:URBTKE>2.0.ZU;2-7
Abstract
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.