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

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

2004-01-18

arxiv.org/abs/cond-mat/0401314v2

Phys. Rev E 68, 051201 (2003)

Physics

Condensed Matter

Disordered Systems and Neural Networks

10 pages, 3 figures

Scientific paper

10.1103/PhysRevE.68.051201

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.

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