The perturbation theory for non-degenerate states and the extended Hückel method
✍ Scribed by Ramon Carbo
- Publisher
- Springer
- Year
- 1970
- Tongue
- English
- Weight
- 228 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1432-2234
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📜 SIMILAR VOLUMES
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
## Abstract An adiabatic formula for the contracted Hamiltonian in a reference space containing bound‐state eigenfunctions of degenerate energy levels embedded in the continuum is derived. A general factorization theorem for the dynamic operator__S__~α~(0, – ∞/λ) is proved, and the cancellation of