Abstract
A new procedure for matching hyperspherical coordinate (HS) wave functions onto close-coupling (CC) wave functions for two-electron systems at a hyperradius is shown to give agreement with accurate phase shifts for up to the resonance. The procedure uses far fewer basis functions than are required in either a HS or a CC calculation alone. The strengths of each method are thus effectively combined to obtain wave functions describing highly correlated two-electron motion near the nucleus () and largely independent electron motion away from the nucleus ().
- Received 26 August 1983
DOI:https://doi.org/10.1103/PhysRevA.29.2242
©1984 American Physical Society