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arXiv physics/0408128physics.plasm-phphysics.class-ph
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相对论回旋运动理论中的短波和回旋损失

Short waves and cyclotron losses in the relativistic gyrokinetic theory

A. Beklemishev, M. Tessarotto

摘要:

本文用协变回旋理论描述了相对论性光学薄等离子体中带电粒子运动的辐射阻尼。它涉及到无碰撞单粒子动力学的描述,以及弗拉索夫和麦克斯韦方程组都写在协变公式。由于刘维尔定理的条件失效,阻尼导致对粒子相空间轨迹的修正,以及对动力学方程本身的形式的修正。这两种效应的结果都与陀螺相位无关,陀螺相位被保留为可解释的变量。此外,还将协变陀螺动力学理论的适用范围扩展到零平行电场背景下的短波长扰动。该理论适用于描述磁化,相对论,碰撞等离子体的背景下,天体物理或实验室的问题。非uniquenes的gyrokinetic表示及其后果进行了讨论。

英文摘要:

Radiation damping of the motion of charged particles in relativistic, optically thin plasmas is described within the framework of the covariant gyrokinetic theory. It involves description of the collisionless single-particle dynamics as well as the Vlasov and Maxwell equations both written in the covariant formulation. The damping causes corrections to the phase-space trajectory of the particle, as well as to the form of the kinetic equation itself, due to the failure of conditions of the Liouville theorem. Both effects result independent of the gyrophase, which is retained as an ignorable variable. In addition, the applicability range of the covariant gyrokinetic theory is extended to describe short-wavelength perturbations with the background of zero parallel electric field. The presented theory is suitable for description of magnetized, relativistic, collisionless plasmas in the context of astrophysical or laboratory problems. Non-uniquenes of the gyrokinetic representation and consequences thereof are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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