Nonextensivity and the q-distribution of a relativistic gas under an external electromagnetic field  

作　　者：LIU ZhiPeng GUO LiNa DU JiuLin 

机构地区：[1]Department of Physics, School of Science, Tianjin University, Tianjin 300072, China [2]Department of Fundamental Subject, Tianjin Institute of Urban Construction, Tianjin 300384, China

出　　处：《Chinese Science Bulletin》2011年第34期3689-3692,共4页

基　　金：supported by the "985" Program of TJU of China;the National Natural Science Foundation of China (10675088, 11175128)

摘　　要：We investigate the nonextensivity and the q-distribution of a relativistic gas under an external electromagnetic field. We derive an expression for the nonextensive parameter q based on the relativistic generalized Boltzmann equation, the relativistic q-H theorem and the relativistic version of the q-power-law distribution function in the nonextensive q-kinetic theory. We thus provide the connection between the parameter q≠1 and the spatial-temporal derivatives of the temperature field of the gas as well as the four-potential, and thereby present a clearly physical meaning for the nonextensivity for the relativistic gas.We investigate the nonextensivity and the q-distribution of a relativistic gas under an external electromagnetic field. We derive an expression for the nonextensive parameter q based on the relativistic generalized Boltzmann equation, the relativistic q-H theorem and the relativistic version of the q-power-law distribution function in the nonextensive q-kinetic theory. We thus provide the connection between the parameter q≠1 and the spatial-temporal derivatives of the temperature field of the gas as well as the four-potential, and thereby present a clearly physical meaning for the nonextensivity for the relativistic gas.

关 键 词：电磁场分布 相对论 气体 BOLTZMANN方程 动力学理论 分布函数 物理意义 H定理 

分 类 号：O414.2[理学—理论物理]