The self-energy of the uniform electron gas is analyzed within the lowest order in the screened potential, using different approximations for the dielectric function. The present numerical analysis reveals that a rather simple approximation for the dielectric function can be used to derive a good estimate for the self-energy.
Electron-gas self-energy at metallic density
PETRILLO, Caterina;SACCHETTI, Francesco
1988
Abstract
The self-energy of the uniform electron gas is analyzed within the lowest order in the screened potential, using different approximations for the dielectric function. The present numerical analysis reveals that a rather simple approximation for the dielectric function can be used to derive a good estimate for the self-energy.File in questo prodotto:
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