Ion acoustic quasi-soliton in an electron-positron-ion plasma with superthermal electrons and positrons

被引：7
|
作者：
Wang, Jianyong [1 ]
Zeng, Ying [1 ]
Liang, Zufeng [2 ]
Xu, Yani [3 ]
Zhang, Yuanxiang [4 ]
机构：
[1] Quzhou Univ, Dept Math & Phys, Quzhou 324000, Peoples R China
[2] Hangzhou Normal Univ, Dept Phys, Hangzhou 310036, Zhejiang, Peoples R China
[3] Quzhou Univ, Coll Teacher Educ, Quzhou 324000, Peoples R China
[4] Quzhou Univ, Key Lab Air Driven Equipment Technol Zhejiang Pro, Quzhou 324000, Peoples R China
来源：
OPEN PHYSICS | 2018年 / 16卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Ion acoustic wave; electron-positron-ion plasma; KdV equation; quasi-soliton behaviour; MAGNETIZED PLASMA; PERIODIC-WAVES; PROPAGATION; EQUATION;
D O I：
10.1515/phys-2018-0073
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this work, we are concerned with the ion acoustic quasisoliton in an electron-positron-ion plasma with superthermal electrons and positrons. By using the reductive perturbation method, the Korteweg-de Vries equation is derived from the governing equations of ion acoustic waves. An interesting soliton-cnoidal wave solution of the Korteweg-de Vries equation and its quasisoliton behaviour are presented. The influence of electron superthermality, positron superthermality and positron concentration ratio on characteristics of the quasi-soliton is confirmed to be significant.
引用
收藏
页码：563 / 567
页数：5
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