Abstract
A numerical evaluation of the imaginary part of the self-energy function, , for the free-electron gas has been performed with the aid of an IBM 7094 computer. The calculation is done within the randomphase approximation using the full Lindhard dielectric-constant function. Results are presented in the form of plots of versus for various values of and electronic density. Comparison is made in the quadratic -dependent region about the Fermi surface with an analytic calculation using a statically screened Coulomb interaction.
- Received 29 August 1966
DOI:https://doi.org/10.1103/PhysRev.155.379
©1967 American Physical Society