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Double perturbation theory and weighting operators

โœ Scribed by J.C.Y. Chen


Publisher
Elsevier Science
Year
1965
Weight
143 KB
Volume
16
Category
Article
ISSN
0031-9163

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๐Ÿ“œ SIMILAR VOLUMES


Double perturbation theory and symmetry
โœ A.T. Amos; J.A. Yoffe ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 430 KB

A formulation of double perturbation theory is described which allows symmetry to be included in those cases where the z,ereorder hamiltonian does not contiin the full symmetry of the problem. As an example-we apply the fl~cov to the Epstein-Johnson spin model. 1 .-Introduction 2. Theory Some years

A double perturbation theory for molecul
โœ E. Beretta; F. Vetrano ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 454 KB

## Abstract Consideration is given to the problem of interactions between molecular systems (magnetic couplings being neglected) by highlighting the fact that the main difficulty of a perturbation theory that takes into account the exchange effects, resides in the differentiated symmetry of the unp