"What is 'liquid'? Understanding the states of matter"

Author: Milanovic Lj.   Posch H. A.   Hoover G.  

Publisher: Taylor & Francis Ltd

ISSN: 1362-3028

Source: Molecular Physics, Vol.95, Iss.2, 1998-10, pp. : 281-287

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Abstract

Molecular dynamics answers the question "what is 'liquid'?" by describing the detailed dynamic structure of simulated liquids in the many-dimensional phase space of statistical mechanics. The Lyapunov instabilities of liquid motion reveal collective dynamic modes, quite unlike those of solid state studies, superimposed on the van der Waals hard particle static structure. Here we illustrate these developments in the characterization of 'liquid' with examples from our recent dynamic instability studies of two-dimensional dumbbell fluids.