Electronic transitions in disc-shaped quantum dots induced by twisted light
| dc.creator | Quinteiro, G. F. | |
| dc.creator | Tamborenea, P. I. | |
| dc.date | 2008-10-22 | |
| dc.date.accessioned | 2026-07-07T10:12:38Z | |
| dc.date.available | 2026-07-07T10:12:38Z | |
| dc.description | We theoretically investigate the absorption and emission of light carrying orbital angular momentum (twisted-light) by quasi-two-dimensional (disc-shaped) quantum dots in the presence of a static magnetic field. We calculate the transition matrix element for the light-matter interaction and use it to explore different scenarios, depending on the initial and final state of the electron undergoing the optically-induced transition. We make explicit the selection rule for the conservation of the z-projection of the orbital angular momentum. For a realistic set of parameters (quantum dots size, beam waist, photon energy, etc.) the strength of the transition induced by twisted light is 10% of that induced by plane-waves. Finally, our analysis indicates that it may be possible to select precisely the electronic level one wishes to populate using the appropriate combination of light-beam parameters suggesting technological applications to the quantum control of electronic states in quantum dots. | |
| dc.identifier | https://arxiv.org/abs/0810.4156 | |
| dc.identifier | http://arxiv.org/abs/0810.4156 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/172248 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Electronic transitions in disc-shaped quantum dots induced by twisted light | |
| dc.type | text |