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arXiv · 0806.0633

Superdiffusion in quasi-two-dimensional Yukawa liquids

T. Ott·Z. Donko·P. Hartmann·M. Bonitz
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Abstract

The emergence and vanishing of superdiffusion in quasi-two-dimensional Yukawa systems are investigated by molecular dynamics simulations. Using both the asymptotic behaviour of the mean-squared displacement of the particles and the long-time tail of the velocity autocorrelation function as indicators for superdiffusion, we confirm the existence of a transition from normal diffusion to superdiffusion in systems changing from a three-dimensional to a two-dimensional character. A connection between superdiffusion and dimensionality is established by the behaviour of the projected pair distribution function.

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T. Ott, Z. Donko, P. Hartmann, M. Bonitz. 2008-06-03. Superdiffusion in quasi-two-dimensional Yukawa liquids. https://doi.org/10.1103/physreve.78.026409

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