The Kadomtsev-Petviashvili (KP), MKP, and coupled KP equations for two-ion-temperature dusty plasmas

被引：56
|
作者：
Lin, MM [1 ]
Duan, WS [1 ]
机构：
[1] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China
来源：
CHAOS SOLITONS & FRACTALS | 2005年 / 23卷 / 03期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/j.chaos.2004.06.003
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
It is well known that the Korteweg-de Vires (KdV) equation can describe small but finite amplitude dust acoustic waves in a dusty plasmas. In this paper, we use the reductive perturbation method and derive a Kadomtsev-Petviashvili (KP) equation, a modified KP (MKP) equation and a coupled KP equation for unmagnetized, collisionless, cold, and two-ion-temperature dusty plasmas with N different species of dust grains. We find that if a solitary wave exist in this system, the smaller grains have larger velocities and propagate longer distances than that of larger particles. The comparisons are given between the dusty plasma composed by different dust particles and the mono-sized dusty plasma. (C) 2004 Elsevier Ltd. All rights reserved.
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页码：929 / 937
页数：9
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