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Superdiffusion and non-Gaussian statistics in a driven-dissipative 2D dusty plasma
Journal article   Peer reviewed

Superdiffusion and non-Gaussian statistics in a driven-dissipative 2D dusty plasma

Bin Liu and J Goree
Physical review letters, Vol.100(5), pp.055003-055003
02/08/2008
DOI: 10.1103/PhysRevLett.100.055003
PMID: 18352381
url
https://arxiv.org/pdf/0801.3991View
Open Access

Abstract

Anomalous diffusion and non-Gaussian statistics are detected experimentally in a two-dimensional driven-dissipative system. A single-layer dusty plasma suspension with a Yukawa interaction and frictional dissipation is heated with laser radiation pressure to yield a structure with liquid ordering. Analyzing the time series for mean-square displacement, superdiffusion is detected at a low but statistically significant level over a wide range of temperatures. The probability distribution function fits a Tsallis distribution, yielding q, a measure of nonextensivity for non-Gaussian statistics.

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