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

作　　者：林麦麦[1] 文惠珊 于腾萱 宋秋影 LIN Mai-mai;WEN Hui-shan;YU Teng-xuan;SONG Qiu-ying(College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,Gansu,China)

机构地区：[1]西北师范大学物理与电子工程学院

出　　处：《西北师范大学学报（自然科学版）》2019年第6期33-40,共8页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(11205124,11565022,11365020)

摘　　要：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.

关 键 词：Tsallis非热电子 约化摄动法 (3+1)维电子声孤波 

分 类 号：O53[理学—等离子体物理]