SORENSEN, TE and ENGLAND, WB and SILVER, DM and STEINBORN, EO (1992) QUANTUM-FIELD THEORETICAL METHODS IN CHEMICALLY BONDED SYSTEMS .2. DIAGRAMMATIC PERTURBATION-THEORY. THEORETICA CHIMICA ACTA, 84 (1-2). pp. 1-19. ISSN 0040-5744,
Full text not available from this repository.Abstract
Many-body perturbation theory is derived for chemical bonds. Paired quasiparticles represent the bonds. Products of the paired quasiparticles define a model Bardeen-Cooper-Schrieffer function. The pairing force is added as a model interaction to the self-consistent problem. The starting model is based on valency and adiabatic symmetry correlation. Symmetries are enforced by the model Hamiltonian. Perturbative corrections are expressed as ordinary Feynman diagrams. The number of diagrams needed is the same as for particle-hole theory.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DISSOCIATION; PERTURBATION THEORY; QUASI-PARTICLES; FEYNMAN DIAGRAMS |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54373 |
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