Electron correlation functions at metallic densities
Abstract
A nonlinear integral equation is obtained for the static structure factor of an electron liquid. The equation is exact both in the small and largewavevector limits. It has been solved selfconsistently and values of the structure factor thus obtained are used to calculate the paircorrelation function of the system. The results are found to be almost positive over the entire metallic density range. An integral equation for the magnetic structure factor is also obtained which is exact for large wave vectors. The spin paircorrelation functions of the electron liquid are calculated using the selfconsistent values of the magnetic structure factor obtained by solving the integral equation. The quality of various spin paircorrelation functions is quite good as compared to those obtained from earlier calculations.
 Publication:

Physical Review B
 Pub Date:
 August 1975
 DOI:
 10.1103/PhysRevB.12.1364
 Bibcode:
 1975PhRvB..12.1364S