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Comment on a perturbation treatment of the ground state of two‐electron atoms using the coordinates r < and r >
Author(s) -
White Ronald J.,
Ramaker D. E.,
Schrader David M.
Publication year - 1970
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560040102
Subject(s) - perturbation (astronomy) , wave function , perturbation theory (quantum mechanics) , atomic physics , ground state , electron , physics , quantum mechanics , chemistry
A perturbation variation treatment of two‐electron atoms using exp (–α r < – β r > ) as the zeroth order wave function is presented. The parameters α and β are variationally determined and the results are compared with the “physical” choice α = Z , β = Z – 1, and with Z −1 theory. The energy is given through fifth order in the perturbation.