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Physical Review B
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Variational approach to the calculation of the dielectric function of an electron gas: Exchange and collisions

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Abstract

In a recent work of Woo and Jha, the exchange correlations in a uniform electron gas were calculated. They ignored the Coulomb correlations completely. To describe the physical properties of an electron gas at metallic densities, we propose a variational method to calculate the dielectric function which takes into account the local-field corrections due to both Coulomb and exchange holes. © 1971 The American Physical Society.

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Physical Review B

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