Superdiffusion in quasi-two-dimensional Yukawa liquids

Details Superdiffusion in quasi-two-dimensional Yukawa liquids Superdiffusion in quasi-two-dimensional Yukawa liquids

2008-06-03

arxiv.org/abs/0806.0633v1

Phys. Rev. E 78, 026409 (2008)

Physics

Plasma Physics

Scientific paper

10.1103/PhysRevE.78.026409

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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