Modulational instability of dust-acoustic and dust-ion-acoustic waves

被引：193

作者：

Amin, MR ^{[1
]}

Morfill, GE

Shukla, PK

机构：

[1] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany

[2] Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany

[3] Jahangirnagar Univ, Dept Phys, Dhaka 1342, Bangladesh

来源：

PHYSICAL REVIEW E | 1998年 / 58卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.58.6517

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Using the standard reductive perturbation technique, a nonlinear Schrodinger equation is derived to study the modulational instability of finite amplitude dust-acoustic (DA) and dust-ion-acoustic (DIA) waves against oblique perturbations (with respect to the propagation direction of the carrier waves) in an unmagnetized dusty plasma. It is shown that both the DA and DIA waves are modulationally unstable. Possible stationary states of the wave packets can appear as envelope solitons. [S1063-651X(98)06111-X].

引用

页码：6517 / 6523

页数：7

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