Perturbationlike Theory without φ
- 15 May 1966
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 44 (10) , 3894-3896
- https://doi.org/10.1063/1.1726549
Abstract
A perturbationlike expansion is derived for the (usual) case when the available starting wavefunction is not an eigenfunction of the unperturbed Hamiltonian. It is shown that the resulting expression satisfies a Hylleras variational condition.Keywords
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