Optical-absorption spectra of quantum dots and rings with a repulsive scattering centre
- 10 February 1996
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 33 (5), 377-382
- https://doi.org/10.1209/epl/i1996-00350-5
Abstract
We have studied electron correlation efiects in quantum dots and rings which include a repulsive scattering centre and are subjected to a perpendicular magnetic fleld. The results for the dipole-allowed absorption spectrum show good qualitative agreement with the observed magnetoplasmon dispersion in similar systems. This work provides a unifled description of the electron correlations in quantum dots and quantum rings in a magnetic fleld. We also demonstrate that optical absorption is a direct route to explore the efiects of impurity and interactions in a quantum ring.Keywords
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