𝔖 Bobbio Scriptorium
✦   LIBER   ✦

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


Perturbation theory for degenerate state
✍ L. N. Ivanov; U. I. Safronova 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 369 KB

## 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

Adiabatic perturbation theory for the de
✍ Yuri Dmitriev 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 315 KB

## 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