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    • Keywords


      Electron acoustic wave; quantum plasma; two-soliton; three-soliton; overtaking collision; phase shift; Hirota bilinear method.

    • Abstract


      The overtaking collision between electron acoustic multisolitons in an unmagnetized quantum plasma consisting of ions, and both hot and cold electrons has been investigated. The Hirota bilinear method is employed to study phase shifts and trajectories during the overtaking collision of multisolitons. It is observed that phase shifts are significantly affected by the quantum parameter $H$. The phase shifts are proportional to $B^{1/3}$ (dispersion coefficient) and are functions of their respective amplitudes. It is also seen that the soliton structure occurs only if $H$ less than 2.

    • Author Affiliations


      Roy Kaushik1 Ghosh Swapan Kumar2 Chatterjee Prasanta3

      1. Beluti M.K.M. High School, P.O. Beluti, Dist. Birbhum 731 301, India
      2. Department of Physics, Darjeeling Government College, Darjeeling 734 104, India
      3. Department of Mathematics, Siksha Bhavana, Visva Bharati University, Santiniketan 731 235, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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