Perturbation theory for system of many-fermions starting from degenerate state
✍ Scribed by Z. Pluhař; I. Úlehla
- Book ID
- 112588774
- Publisher
- Springer
- Year
- 1963
- Tongue
- English
- Weight
- 359 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0011-4626
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The first few terms of the perturbation expansions for the function and the energy shift of a degenerate state of an arbitrary quantum mechanical system are obtained using the adiabatic formula. It is shown how the expansion for the secular operator may be obtained from the expansion fo
## 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