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核聚变与等离子体物理 ›› 2009, Vol. 29 ›› Issue (3): 199-202.

• 等离子体物理学 • 上一篇    下一篇

相对论正负电子对双温等离子体中纵波线性色散关系

汪浩,刘三秋,杜建强   

  1. (1. 江西中医学院计算机学院,南昌 330004;2. 南昌大学理学院物理系,南昌 330031)
  • 收稿日期:2008-08-06 修回日期:2009-02-10 出版日期:2009-09-15 发布日期:2010-08-18
  • 作者简介:汪浩(1976-),男,江苏徐州人,硕士,讲师,研究方向:激光等离子体相互作用、量子光学、量子纠缠、凝聚态理论及其应用等。
  • 基金资助:

    教育部新世纪优秀人才支持计划资助(NCET-05-0575);江西省跨世纪学术和技术带头人培养计划项目资助项目(040010);江西省科技攻关计划项目(20061B0402100)

Linear dispersion relation for longitudinal modes of two temperature electron-positron plasma in relativistic regime

WANG Hao, LIU San-qiu, DU Jian-qiang   

  1. (1. School of Computer, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004;2. Department of Physics, Nanchang University, Nanchang 330031)
  • Received:2008-08-06 Revised:2009-02-10 Online:2009-09-15 Published:2010-08-18

摘要:

导出了无磁化无碰撞各向同性相对论正负电子对等离子体纵波的色散关系。使用逐次近似的标准技术,对两种极限情况下的纵波色散方程进行了解析研究。将完全色散方程进行变换,使它们完全适用于在需要完全相对论处理的温度范围内进行数值计算。用数值模拟方法得到了用解析方法不能得到的完全的色散曲线。

关键词: 麦克斯韦方程, 正负电子对, 等离子体, 纵波色散关系 麦克斯韦方程, 正负电子对, 等离子体, 纵波色散关系

Abstract:

The dispersion relations of superluminal waves for the longitudinal collective modes in unmagnetized, collisionless and homogeneous relativistic electron-positron plasmas are derived. Using the standard technique of successive approximations, an analytic study of longitudinal dispersion equations in two limiting cases is presented. The full dispersion equations are transformed so that they are well suited for numerical evaluation in the temperature range where a fully relativistic treatment is needed. Using the numerical simulation method, we obtain the full dispersion curve which can’t get from the analytic method.

Key words: Maxwell equation, Electron-positron pair, Plasma, Longitudinal dispersion relation

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