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

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 E(Z) = - 1.125Z sq. + 1.02280521Z - 0.40814899 + 0 (1/Z). (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 23, 1965
Accession Number
AD0644515

Entities

People

  • A. Dalgarno
  • C. D. H. Chisholm

Organizations

  • Queen's University Belfast

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Atomic Properties
  • Eigenvalues
  • Electrons
  • Mathematics
  • Sequences

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Regression Analysis.

Technology Areas

  • Microelectronics