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    • Keywords


      Ion-acoustic solitons; compressive; multispecies; electron-positron

    • Abstract


      Ion-acoustic solitons are investigated in the spatially inhomogeneous plasma having electrons-positrons and ions. The soliton characteristics are described by Korteweg-de Vries equation which has an additional term. The density and temperature of different species play an important role for the amplitude and width of the solitons. Numerical calculations show only the possibility of compressive solitons. Further, analytical results predict that the peak amplitude of soliton decreases with the decrease of density gradient. Soliton characteristics like peak amplitude and width are substantially different from those based on KdV theory for homogeneous plasmas

    • Author Affiliations


      Tarsem Singh Gill1 Harvinder Kaur2 Nareshpal Singh Saini1

      1. Department of Physics, Guru Nanak Dev University, Amritsar - 143 005, India
      2. Department of Physics, Khalsa College, Amritsar - 143 002, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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