SUPERPOSITION OF NONLINEAR PLASMA-WAVES

被引：34

作者：

BUCHANAN, M ^{[1
]}

DORNING, JJ ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT ENGN PHYS,CHARLOTTESVILLE,VA 22903

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.70.3732

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report results showing that spatially periodic Bernstein-Greene-Kruskal (BGK) waves, which are exact nonlinear traveling wave solutions of the Vlasov-Maxwell equations for collisionless plasmas, satisfy a nonlinear principle of superposition in the small amplitude limit. The analysis explicates the notion of superimposed BGK waves which, as recent numerical calculations suggest, is crucial in the proper description of the time-asymptotic state of a plasma when a large amplitude electrostatic wave undergoes nonlinear Landau damping.

引用

页码：3732 / 3735

页数：4

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