Ion-acoustic solitons and double-layers in a plasma consisting of positive and negative ions with non-thermal electrons

  • T. S. Gill
  • P. Bala
  • H. Kaur
  • N. S. Saini
  • S. Bansal
  • J. Kaur
Article

Abstract.

In this research paper, the authors have studied the properties of ion-acoustic solitons and double-layers in a plasma consisting of warm positive and negative ions with different concentration of masses, charged states and non-thermal electrons using small amplitude approximation. Reductive perturbation method is used to derive KdV and m-KdV equations. Existence of ion-acoustic solitons and double-layer is explored over a wide range of parameter space. The role of non-thermal electrons characterized by finite \(\beta\) is investigated. It is observed that for a particular value of \(\beta\), there is a transition from compressive to rarefactive solitons. However, when \(\beta\) is increased beyond a critical value, no double-layers are obtained. The significance of relative ion masses is also investigated.

Keywords

Soliton Parameter Space Charged State Research Paper Small Amplitude 

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • T. S. Gill
    • 1
  • P. Bala
    • 1
  • H. Kaur
    • 2
  • N. S. Saini
    • 1
  • S. Bansal
    • 1
  • J. Kaur
    • 1
  1. 1.Department of PhysicsGuru Nanak Dev UniversityAmritsarIndia
  2. 2.Department of PhysicsKhalsa CollegeAmritsarIndia

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