具有两种温度离子尘埃等离子体中的(3+1)维非线性波

(3+1) Dimensional Nonlinear Waves in a Two-ion-temperature Dusty Plasma

运用约化摄动法,研究了具有两种温度离子尘埃等离子体中的尘埃声孤波,得到了描述尘埃等离子体中小振幅尘埃声孤波的(3+1)维KP(Kadomtsev-Petviashvili)方程.并讨论了不同参数对尘埃声孤波传播特征的重要影响.

The reductive perturbation method is used to study the propagating characters of（3＋1） dimensional dust acoustic waves in a dusty plasma.The Kadomtsev-Petviashvili equation is obtained.Meanwhile,the effects of different kinds of parameters on the dust acoustic solitary waves are investigted.