• Static structure factor of electrons around a heavy positively charged impurity in a one-component quantum rare plasma

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      https://www.ias.ac.in/article/fulltext/pram/044/03/0271-0277

    • Keywords

       

      Static structure factor; charged impurity; one component quantum rare plasma

    • Abstract

       

      An expression for the static structure factor,g+− (r), of electrons at a distancer from an infinitely heavy positively charged particle in a one component quantum rare plasma has been obtained in linear response theory using an appropriate quantum dielectric function of the rare plasma. The expression is a complicated function of the electron plasma frequency, Debye screening length andr, but reduces to that of classical plasma when quantum corrections are neglected. Forr<rs (2rs being the mean distance between two electrons), the temperature dependentg+− (r) has larger values in quantum case in comparison to that in classical situation and keeps increasing with decrease inr, more so at low temperatures when de-Broglie wavelength becomes larger and a considerable fraction ofrs.

    • Author Affiliations

       

      S P Tewari1 Hira Joshi1

      1. Department of Physics and Astrophysics, University of Delhi, Delhi - 110 007, India
    • Dates

       
  • Pramana – Journal of Physics | News

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