Transport coefficients and nonextensive statistics
统计力学
2009-11-07 v1
摘要
We discuss the basic transport phenomena in gases and plasmas obeying the -nonextensive velocity distribution (power-law). Analytical expressions for the thermal conductivity () and viscosity () are derived by solving the Boltzmann equation in the relaxation-time approximation. The available experimental results to the ratio {}/ constrains the -parameter on the interval . In the extensive limiting case, the standard transport coefficients based on the local Gaussian distribution are recovered, and due to a surprising cancellation, the electric conductivity of a neutral plasma is not modified.
引用
@article{arxiv.cond-mat/0201541,
title = {Transport coefficients and nonextensive statistics},
author = {J. R. Bezerra and R. Silva and J. A. S. Lima},
journal= {arXiv preprint arXiv:cond-mat/0201541},
year = {2009}
}
备注
14 pages, 3 figures, REVTEX, submitted to PRE