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EnglishWe treat the classical problem of a number of discrete states interacting with continua (Fano effect), by means of the recursion method. We first map a continuum of states on an equivalent semi-infinite linear chain; then we take advantage of the concepts and properties of the interaction and dipole carrying states to calculate the absorption spectrum. Our approach leads to a significant simplification of calculations without introducing approximations to the original problem. As an example, we consider the case of discrete states interacting with a semielliptical band: we show that resonances, antiresonances, and narrowing of levels, due to interference effects among interacting channels, can be handled in a very compact and simple way.
| Autori interni: | |
| Autori: | DOLCHER V; GROSSO G; PASTORI PARRAVICINI G |
| Titolo: | FANO EFFECT STUDIED WITH USE OF THE RECURSION METHOD |
| Anno del prodotto: | 1992 |
| Digital Object Identifier (DOI): | 10.1103/PhysRevB.46.9312 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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