Diffusion Time-Scale Invariance, Markovization Processes and Memory Effects in Lennard-Jones Liquids

Abstract

We report the results of calculation of diffusion coefficients for Lennard-Jones liquids, based on the idea of time-scale invariance of relaxation processes in liquids. The results were compared with the molecular dynamics data for Lennard-Jones system and a good agreement of our theory with these data over a wide range of densities and temperatures was obtained. By calculations of the non-Markovity parameter we have estimated numerically statistical memory effects of diffusion in detail.

10 pages, 3 figures

References in corpus (1)

• Time-scale invariance of relaxation processes of density fluctuation in slow neutron scattering in liquid cesium

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