含有Tsallis非热电子的等离子体中(3+1)维电子声孤波的研究

The study of (3+1)-dimensional electron acoustic solitary waves in a plasma containing Tsallis nonthermal electrons

利用约化摄动法研究了含有Tsallis非热电子的等离子体中(3+1)维电子声孤波,推导得到了用来描述电子呈现Tsallis分布的复杂等离子体中(3+1)维电子声孤波的Zakharov-Kuznetsov(ZK)方程,并利用数值模拟方法,分析了Tsallis非热电子分布状态对(3+1)维电子声孤波的非线性强度、孤立波的振幅与宽度及电子声孤波传播特性的影响.

In this paper,the reducetive perturbation method is used to study the(3+1)-dimensional electron acoustic solitary waves(EASW)in a plasma containing Tsallis nonthermal electrons.The Zakharov-Kuznetsov(ZK)equation has been derived which has described the Tsallis distribution of electrons for(3+1)-dimensional EASW.The effects of Tsallis nonthermal electron distribution on the(3+1)-dimensional EASW in a complex plasma is considered by numerical simulation method.The effects of Tsallis nonthermal electron distribution on the non-linear intensity,amplitude and width of(3+1)-dimensional electron acoustic solitary wave and propagation characteristics of electron acoustic solitary wave are obtained.