Wigner's (2n+ 1) rule in MBPT
- 1 January 1980
- journal article
- research article
- Published by Informa UK Limited in Molecular Physics
- Vol. 39 (1), 143-161
- https://doi.org/10.1080/00268978000100121
Abstract
Wigner's (2n + 1) rule (stating that the 2nth and/or (2n + 1)th order perturbation contributions to a non-degenerate energy can be evaluated from a knowledge of the wavefunction through nth order) is applied to many-body perturbation theory (MBPT). This approach essentially simplifies the calculation of correlation energy to an order higher than the third and reduces the number of required diagrams.Keywords
This publication has 24 references indexed in Scilit:
- Linked-Cluster Perturbation Theory for Closed- and Open-Shell SystemsPublished by Elsevier BV ,1977
- Application of Diagrammatic Quasidegenerate Rspt in Quantum Molecular PhysicsAdvances in Chemical Physics, 1977
- An algorithm for generating Goldstone and Bloch-Brandow diagramsJournal of Computational Physics, 1976
- Time-Independent Diagrammatic Approach to Perturbation Theory of Fermion SystemsPublished by Elsevier BV ,1975
- Computer generation of Feynman diagrams for perturbation theory II. Program descriptionComputer Physics Communications, 1973
- Computer generation of Feynman diagrams for perturbation theory I. General algorithmComputer Physics Communications, 1973
- Correlation Problems in Atomic and Molecular Systems. IV. Extended Coupled-Pair Many-Electron Theory and Its Application to the BMoleculePhysical Review A, 1972
- On the Correlation Problem in Atomic and Molecular Systems. Calculation of Wavefunction Components in Ursell-Type Expansion Using Quantum-Field Theoretical MethodsThe Journal of Chemical Physics, 1966
- Short-range correlations in nuclear wave functionsNuclear Physics, 1960
- Bound states of a many-particle systemNuclear Physics, 1958