Nonextensivity in nonequilibrium plasma systems with Coulombian long-range interactions

被引：237
|
作者：
Du, JL [1 ]
机构：
[1] Tianjin Univ, Dept Phys, Sch Sci, Tianjin 300072, Peoples R China
来源：
PHYSICS LETTERS A | 2004年 / 329卷 / 4-5期
关键词：
D O I：
10.1016/j.physleta.2004.07.010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The nonextensivity in a nonisothermal plasma system with the Coulombian long-range interaction is studied in the framework of Tsallis statistics. We present for first time a mathematical expression of the nonextensive parameter q based on the mathematical theory about the generalized Boltzmann equation and the q-H theorem and the Maxwellian q-velocity distribution. We obtain a new physical explanation for q not equal 1 related to the nature of nonisothermal configurations in the plasma systems with the Coulombian long-range interaction, which means that Tsallis statistics might be a suitable statistics for the description of a nonequilibrium system with long-range interactions and with a temperature gradient in it. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：262 / 267
页数：6
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