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The antisymmetrized product of weak nonorthogonal geminals

✍ Scribed by I. Ts. Lyast

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
282 KB
Volume
13
Category
Article
ISSN
0020-7608

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✦ Synopsis

Abstract

Most commonly the nonorthogonality of geminals is weakly expressed so that the exchange and overlap integrals ΞΆ^(Ξ·)^, Ο†^(Ξ·)^ are negligible for large exchange parameters Ξ·. The conditions which allow the terms with large Ξ· to be discarded are considered. The integrals ΞΆ^(Ξ·)^, Ο†^(Ξ·)^ are derived for Ξ· = 2, 3, 4.

πŸ“œ SIMILAR VOLUMES

Coupled perturbation theory within the a
Coupled perturbation theory within the antisymmetrized product of separated geminals (APSG) framework
✍ Yu. Dmitriev; G. Peinel πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 English βš– 319 KB

## Abstract A coupled perturbation theory for the antisymmetrized product of separated geminals (APSG) approximation is derived. The variational principle for the APSG wave function in an external oscillating field is employed and a set of equations of the form analogous to the normal RPA is obtain

Antisymmetric product of geminals in the
Antisymmetric product of geminals in the context of the method of moments
✍ I. RΓΈeggen πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 English βš– 831 KB

## Abstract A scheme for obtaining approximate solutions of the electronic SchrΓΆdinger equation is formulated within the context of the method of moments. The flexibility of the method of moments is utilized in the construction of a model based on an antisymmetric product of geminals (APG). This AP