中国物理B ›› 2011, Vol. 20 ›› Issue (6): 65201-065201.doi: 10.1088/1674-1056/20/6/065201
• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇 下一篇
刘三秋, 陈小昌
Liu San-Qiu (刘三秋), Xiao-Chang (陈小昌)
摘要: The generalized dispersion equation for longitudinal oscillation in an unmagnetized, collisionless, isotropic and relativistic plasma is derived in the context of nonextensive q-distribution. An analytical expression for the Landau damping is obtained in an ultra-relativistic regime, which is related to q-parameter. In the limit q → 1, the result based on the relativistic Maxwellian distribution is recovered. It is shown that the interactions between the wave and particles are stronger and the waves are more strongly damped for lower values of q-parameter. The results are explained by the increased number of superthermal particles or low velocity particles contained in the plasma with the nonextensive distribution.
中图分类号: (Elementary processes in plasmas)