Projected Hartree Product Wavefunctions. IV. Radial Correlation in Some Three- and Four-Electron Atoms
- 15 January 1970
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 52 (2) , 888-892
- https://doi.org/10.1063/1.1673069
Abstract
The energies of some three- and four-electron atoms including radial correlation have been determined by a spin-free version of the projected Hartree–Fock method. The wavefunction possesses the maximum flexibility allowable under the general restrictions of the method, and it is shown that this flexibility is necessary to adequately account for the differences between intra- and intershell correlation. Some comments on the AMO method are included.Keywords
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