The paper studies the effect of a weak ac field on the Wannier states, which are known to be the metastable states of a quantum particle in a periodic potential subject to a static field. Provided that the photon energy exactly matches the spacing of the Wannier-Stark ladder the system complex quasi
Perturbation theory for resonance and virtual states
β Scribed by S. I. Manaenkov
- Book ID
- 112465205
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 1972
- Tongue
- English
- Weight
- 437 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0040-5779
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π SIMILAR VOLUMES
The distinction between an s-wave virtual state and a resonance is explained by exhibiting the characteristic phase shifts and scattering cross-section shapes attributable to each. They are described in both R-matrix and S-matrix terms, and the relation between these two parametrizations is explaine
Vector method procedures arr adapted to evaluate Rayleigh-Schriidiiger perturbation corrections to a multiconfiguration zeroth order function. If this function is sufticientiy flexible, this perturbation theory can be applied to low lying excited states\_ The effectiveness of our theory is demonstra