首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Modulational instability of ion-acoustic soliton in electron-positron-ion plasma with dust particulates
Authors:A S Bains  N S Saini  T S Gill
Institution:1. Department of Applied Sciences, CT Institute of Engineering Management and Technology, Shahpur Campus, Jalandhar, 144020, India
2. Department of Physics, Guru Nanak Dev University, Amritsar, 143005, India
Abstract:Theoretical investigation has been made to study the envelope excitations of ion-acoustic solitons (IAS) in plasma composed of electrons, positrons, ions and dust particles. A nonlinear Schrödinger equation which describes the modulational instability of the IAS is derived by using the multiple scale method. The dispersive and nonlinear coefficients are obtained which depend upon the temperature of the ions, concentration of the positrons, electrons and dust particles. The modulationally stable and unstable regions are studied numerically for a wide range of parameters. It is found that these parameters play significant role in the formation of bright and dark envelope solitons in this plasma system.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号