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Self-consistent Overhauser model for the pair distribution function of an electron gas at finite temperature

R. Asgari·M. Cardenas·M. Polini·B. Davoudi·M. P. Tosi
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Abstract

We present calculations of the spin-averaged pair distribution function $g(r)$ in a homogeneous gas of electrons moving in dimensionality D=3 or D=2 at finite temperature. The model involves the solution of a two-electron scattering problem via an effective potential which embodies many-body effects through a self-consistent Hartree approximation, leading to two-body wave functions to be averaged over a temperature-dependent distribution of relative momentum for electron pairs. We report illustrative numerical results for $g(r)$ in an intermediate-coupling regime and interpret them in terms of changes of short-range order with increasing temperature.

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R. Asgari, M. Cardenas, M. Polini, B. Davoudi, M. P. Tosi. 2004-08-12. Self-consistent Overhauser model for the pair distribution function of an electron gas at finite temperature. https://doi.org/10.1016/j.ssc.2004.11.004

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