Static structure factor of electrons around a heavy positively charged impurity in a one-component quantum rare plasma
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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.
Volume 97, 2023
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