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Rayleigh-Schrödinger perturbation theory for many-electron systems with partitioning of configurations by orders of excitation

✍ Scribed by William J. Taylor

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
26 KB
Volume
25
Category
Article
ISSN
0020-7608

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Rayleigh–Schrödinger perturbation theory
Rayleigh–Schrödinger perturbation theory for many-electron systems with partitioning of configurations by orders of excitation
✍ William J. Taylor 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 592 KB

## Abstract Rayleigh–Schrödinger perturbation theory for many‐electron systems has been rederived by an extension of Löwin's partitioning method in which excited configurations are further partitioned by their orders (two equivalent definitions of the __order__ of a configuration are given). The re

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The ionization potentials and electron affinities are calculated by the use of the many-body Rayleigh-SchrBdinger perturbation theory. This approach is elaborated up to the third order, where each perturbation contribution can be interpreted by the diagrammatic method. Some simple illustrative calcu