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    • Keywords

       

      Quantum plasma; multisolitons; phase shift; Hirota bilinear method; spin-1/2.

    • Abstract

       

      We investigate the face-to-face collision between multisolitons in spin-1/2 quantum plasma. It is studied in the framework of the model proposed by Marklund et al in {\it Phys. Rev.} E 76, 067401 (2007). This studyis done with the help of the extended Poincare–Lighthill–Kno (PLK) method. The extended PLK method is also used to obtain two Korteweg–de Vries (KdV) equations and the phase shifts and trajectories during the head-oncollision of multisolitons. The collision-induced phase shifts (trajectory changes) are also obtained. The effects of the Zeeman energy, total mass density of the charged plasma particles, speed of the wave and the ratio of the sound speed to Alfvén speed on the phase shifts are studied. It is observed that the phase shifts are significantly affected by all these parameters.

    • Author Affiliations

       

      KAUSHIK ROY1 SOURAV CHOUDHURY2 PRASANTA CHATTERJEE2 C S C S WONG3

      1. Beluti M.K.M. High School, P.O.-Beluti, Dist-Birbhum, 731 301, India
      2. Department of Mathematics, Siksha Bhavana, Visva Bharati, Santiniketan 731 235, India
      3. Plasma Technology Research Centre, Department of Physics, University of Malaya, 50603, Kuala Lumpur, Malaysia
    • Dates

       
  • Pramana – Journal of Physics | News

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