Comment on the average energy denominator method in perturbation theory
β Scribed by O.L. Malta; E.A. Gouveia
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 136 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0375-9601
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π SIMILAR VOLUMES
Curve crossing in a simple two-electron two-orbital model is considered. It is shown that the spin density wave (SDIi? solution has the correct crossing points and is closest to the exact solution of ali single determinants.
We extended the dynamic response theory in the MΓΈllerαPlesset Ε½ . Ε½ . perturbation theory MPPT based on the quasi-energy derivative QED method for closed-shell systems to that for open-shell systems. In this study we perform the Ε½ . calculations of frequency-dependent polarizabilities β£ y; for nonde
## Abstract van Lenthe, Broer, and Rashid made comments on our 2009 paper [Song et al., J. Comput. Chem. 2009, 30, 399] by criticizing that we did not properly reference the work by Broer and Nieuwpoort in 1988 [Broer and Nieuwpoort, Theor. Chim. Acta. 1988, 73, 405], and we favorably compared our