Variational Approach to Perturbation Theory. II. An Extension of the Minimum Principle

The variational principle used to calculate the interaction of an atom or molecule with a weak electro-magnetic field is cast in a form analogous to the Kato identity of atomic scattering theory. A theorem from the literature of scattering theory is then used to extend the conditions under which the...

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Bibliographic Details
Published in:The Journal of chemical physics 1968, Vol.49 (7), p.3106-3109
Main Author: Kolker, H. J.
Format: Article
Language:English
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Summary:The variational principle used to calculate the interaction of an atom or molecule with a weak electro-magnetic field is cast in a form analogous to the Kato identity of atomic scattering theory. A theorem from the literature of scattering theory is then used to extend the conditions under which the variational approach to perturbation theory becomes a true minimum.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1670555