Accession Number:

AD0644515

Title:

AN EXPANSION METHOD FOR CALCULATING ATOMIC PROPERTIES. VII. THE CORRELATION ENERGIES OF THE LITHIUM SEQUENCE.

Descriptive Note:

Scientific rept. no. 13, 1 Aug 64-31 Jul 66,

Corporate Author:

QUEEN'S UNIV BELFAST (NORTHERN IRELAND) DEPT OF APPLIED MATHEMATICS

Personal Author(s):

Report Date:

1965-10-23

Pagination or Media Count:

23.0

Abstract:

If the energy of an atomic system is expanded in inverse powers of the nuclear charge Z, the leading term of the correlation energy after degeneracies have been removed is a constant which can be expressed as a weighted sum of electron pair energies and certain non-additive terms. The pair energies may be obtained from direct two-electron variational calculations and the non-additive terms may be evaluated exactly. Calculations are carried out for the lithium doublet-S sequence with the result that the non-relativistic eigenvalues are given by EZ - 1.125Z sq. 1.02280521Z - 0.40814899 0 1Z. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE