扭曲等离子体的磁性

J.T. Mendonça
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引用次数: 0

摘要

研究了磁化等离子体中扭曲等离子体的线性和非线性特性。扭曲等离子体是具有有限角动量的电子等离子体波。与平面等离子体波不同,平面等离子体波沿静态磁场方向传播,色散与各向同性等离子体相同,扭曲波的性质取决于其角动量的值。利用流体近似导出了一种新的色散关系。我们还研究了与扭曲等离子体相关的非线性效应,并表明它们引入了电磁修正。特别相关的是准静态磁场的激发,它与有限振幅等离子体解有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Magnetic properties of twisted plasmons

We consider the linear and nonlinear properties of twisted plasmons propagating in a magnetized plasma. Twisted plasmons are electron plasma waves with a finite amount of angular momentum. In contrast with plane plasma waves, which propagate along the static magnetic field direction with the same dispersion as in isotropic plasmas, the properties of twisted waves depend on the value of their angular momentum. A new dispersion relation is derived, using the fluid approximation. We also study nonlinear effects associated with twisted plasmons, and show that they introduce electromagnetic corrections. Of particular relevance is the excitation of a quasi-static magnetic field, which is associated with finite amplitude plasmon solutions.

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