Instability of waves in magnetized vortex-like ion distribution dusty-plasmas

被引：0

作者：

Duan Wen-Shan ^{[1
]}

Chen Jian-Hong ^{[1
]}

Hong Xue-Ren ^{[1
]}

Wan Gui-Xin ^{[1
]}

机构：

[1] NW Normal Univ, Dept Phys, Lanzhou 730070, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2007年 / 47卷 / 01期

关键词：

dust size distribution; soliton; modified Zakharov-Kuznetsov equation;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A modified Zakharov-Kuznetsov equation for small but finite amplitude dust acoustic waves in a magnetized votex-like ion distribution dusty plasma is obtained in this paper. It seems that there are instability for a soliton under higher-order transverse perturbations in this system. There is a certain critical value 4 lambda(0). If the ratio of the wave length of the higher-order perturbations to the width of the soliton is larger than this critical value, the solitary wave is unstable, otherwise it is stable.

引用

页码：149 / 154

页数：6

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