Improvement of Uncoupled Hartree—Fock Expectation Values for Physical Properties
- 15 January 1966
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 44 (2) , 431-433
- https://doi.org/10.1063/1.1726702
Abstract
It is shown that if one uses the uncoupled Hartree—Fock method as a zero-order approximation for calculating atomic and molecular second-order properties (either static or dynamic), then the first-order corrections to this approximation are determined solely by quantities already available from the zero-order calculations. No new equations need be solved.Keywords
This publication has 4 references indexed in Scilit:
- Recent Developments in Perturbation TheoryPublished by Elsevier ,1964
- Accuracy of Calculated Atomic and Molecular PropertiesPublished by Elsevier ,1964
- Perturbation theory for atomic systemsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1959
- A perturbation calculation of properties of the helium iso-electronic sequenceProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1958