Superdiffusion and non-Gaussian statistics in a driven-dissipative 2D dusty plasma
Soft Condensed Matter
2009-11-13 v1 Statistical Mechanics
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 (MSD), superdiffusion is detected at a low but statistically significant level over a wide range of temperature. The probability distribution function (PDF) fits a Tsallis distribution, yielding q, a measure of non-extensivity for non-Gaussian statistics.
Cite
@article{arxiv.0801.3991,
title = {Superdiffusion and non-Gaussian statistics in a driven-dissipative 2D dusty plasma},
author = {Bin Liu and J. Goree},
journal= {arXiv preprint arXiv:0801.3991},
year = {2009}
}
Comments
9 pages text, 4 figures, in press Physical Review Letters 2008