Abstract
The exact form of the third-frequency-moment sum rule is used to obtain the long-wavelength limit of the dynamic local-field correction of electron liquids within the formalism of Gross and Kohn. The effects of correlation modify the high-frequency behavior of the local-field correction typically by a factor 2–3 at metallic densities.
- Received 6 October 1986
DOI:https://doi.org/10.1103/PhysRevB.35.3003
©1987 American Physical Society