Statistics of resonance width shifts as a signature of eigenfunction nonorthogonality.
Phys Rev Lett
; 108(18): 184101, 2012 May 04.
Article
en En
| MEDLINE
| ID: mdl-22681079
We consider an open (scattering) quantum system under the action of a perturbation of its closed counterpart. It is demonstrated that the resulting shift of resonance widths is a sensitive indicator of the nonorthogonality of resonance wave functions, being zero only if those were orthogonal. Focusing further on chaotic systems, we employ random matrix theory to introduce a new type of parametric statistics in open systems and derive the distribution of the resonance width shifts in the regime of weak coupling to the continuum.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Año:
2012
Tipo del documento:
Article
País de afiliación:
Reino Unido
Pais de publicación:
Estados Unidos