Correlated electron-pair properties of the He atom in position and momentum spaces

Abstract

Based on multi-configuration Hartree-Fock calculations, correlated electron-pair intracule (relative motion) and extracule (center-of-mass motion) properties are reported for the He atom in both position and momentum spaces. The present results are more consistent yet systematic than those in the literature. © 2001 Elsevier Science B.V.