Advanced

Superscars in billiards: A model for doorway states in quantum spectra

Åberg, Sven LU ; Guhr, Thomas LU ; Miski-Oglu, Maksim and Richter, Achim (2008) In Physical Review Letters 100(20).
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ISOSPIN SYMMETRY, SYSTEMS, EIGENFUNCTIONS, STRENGTH
in
Physical Review Letters
volume
100
issue
20
publisher
American Physical Society
external identifiers
  • wos:000256206400032
  • scopus:44349103655
ISSN
1079-7114
DOI
10.1103/PhysRevLett.100.204101
language
English
LU publication?
yes
id
b2af4000-e321-4121-8273-a6fcc17d9cdc (old id 1245800)
date added to LUP
2008-11-06 11:27:18
date last changed
2017-08-27 03:55:06
@article{b2af4000-e321-4121-8273-a6fcc17d9cdc,
  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.},
  articleno    = {204101},
  author       = {Åberg, Sven and Guhr, Thomas and Miski-Oglu, Maksim and Richter, Achim},
  issn         = {1079-7114},
  keyword      = {ISOSPIN SYMMETRY,SYSTEMS,EIGENFUNCTIONS,STRENGTH},
  language     = {eng},
  number       = {20},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Superscars in billiards: A model for doorway states in quantum spectra},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.100.204101},
  volume       = {100},
  year         = {2008},
}