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Superscars in Billiards: A Model for Doorway States in Quantum Spectra

Aberg, Sven ; Guhr, Thomas ; Miski-Oglu, M. ; Richter, A. :
Superscars in Billiards: A Model for Doorway States in Quantum Spectra.
[Online-Edition: http://link.aps.org/abstract/PRL/v100/e204101]
In: Phys. Rev. Lett., 100 (20) p. 204101.
[Artikel], (2008)

Offizielle URL: http://link.aps.org/abstract/PRL/v100/e204101

Kurzbeschreibung (Abstract)

In a unifying way, the doorway mechanism explains spectral properties in a rich variety of open mesoscopic quantum systems, ranging from atoms to nuclei. A distinct state and a background of other states couple to each other which sensitively affects the strength function. The recently measured superscars in the barrier billiard provide an ideal model for an in-depth investigation of this mechanism. We introduce two new statistical observables: the full distribution of the maximum coupling coefficient to the doorway and directed spatial correlators. Using random matrix theory and random plane waves, we obtain a consistent understanding of the experimental data.

Typ des Eintrags: Artikel
Erschienen: 2008
Autor(en): Aberg, Sven ; Guhr, Thomas ; Miski-Oglu, M. ; Richter, A.
Titel: Superscars in Billiards: A Model for Doorway States in Quantum Spectra
Sprache: Englisch
Kurzbeschreibung (Abstract):

In a unifying way, the doorway mechanism explains spectral properties in a rich variety of open mesoscopic quantum systems, ranging from atoms to nuclei. A distinct state and a background of other states couple to each other which sensitively affects the strength function. The recently measured superscars in the barrier billiard provide an ideal model for an in-depth investigation of this mechanism. We introduce two new statistical observables: the full distribution of the maximum coupling coefficient to the doorway and directed spatial correlators. Using random matrix theory and random plane waves, we obtain a consistent understanding of the experimental data.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Phys. Rev. Lett.
Band: 100
(Heft-)Nummer: 20
Verlag: APS
Fachbereich(e)/-gebiet(e): Fachbereich Physik
Fachbereich Physik > Festkörperphysik, Condensed matter physics
Hinterlegungsdatum: 20 Jan 2009 12:13
Offizielle URL: http://link.aps.org/abstract/PRL/v100/e204101
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