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On the relation between Peierls' perturbation theory for projected states and exchange perturbation theory

✍ Scribed by A. Mann

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
223 KB
Volume
32
Category
Article
ISSN
0009-2614

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πŸ“œ SIMILAR VOLUMES

Renormalized perturbation theory by the
Renormalized perturbation theory by the moment method for degenerate states: Anharmonic oscillators
✍ Marcelo D. Radicioni; Carlos G. Diaz; Francisco M. FernΓ‘ndez πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 183 KB

We apply renormalized perturbation theory by the moment method to an anharmonic oscillator in two dimensions with a perturbation that couples unperturbed degenerate states. The method leads to simple recurrence relations for the perturbation corrections to the energy and moments of the eigenfunction