含有双温非热离子的尘埃等离子体中的非线性尘埃声孤波  

The nonlinear dust-acoustic solitary waves in dusty plasma with two-temperature nonthermal ions

作　　者：周志坚[1] 王红艳[1] 张开彪[1] 

机构地区：[1]四川理工学院物理系,四川自贡643000

出　　处：《安徽大学学报（自然科学版）》2009年第4期59-61,共3页Journal of Anhui University(Natural Science Edition)

基　　金：四川省教育厅(重点)科研基金资助项目(08ZA161);四川理工学院理学院自然科学基金资助项目(07ZR46)

摘　　要：使用约化摄动法得到了含有双温非热离子的尘埃等离子体中的KdV方程.结果表明,双温满足非热分布的离子会严重影响着尘埃声孤波的结构,而且,该体系中稀疏形孤波与压缩形孤波共存.By using the reductive perturbation method, we derived a KdV equation which describe the dust-acoustic solitons in a dusty plasma with two -temperature nonthermal distributed ions. It was found that two temperature nonthermal ions could significantly influence the solitons structure. Furthermore, both compressive and rarefactive solitary waves could coexist in this system.

关 键 词：KDV方程 尘埃声孤波 双温非热离子 

分 类 号：O534[理学—等离子体物理]