Eigenstate symmetry probed by biexciton transitions in a single quantum dot
✍ Scribed by R Weigand; G Bacher; V.D Kulakovskii; J Seufert; T Kümmell; A Forchel; K Leonardi; D Hommel
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 96 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1386-9477
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## Abstract We report on coherent control of the two‐photon transition between the ground state and the biexciton state on a single quantum dot level. The population of the biexciton is monitored by the cascaded spontaneous emission of the biexciton complex via the exciton states. The signal shows
We show that transport in open quantum dots can be mediated by single eigenstates, even when the leads allow several propagating modes. The broadening of these states can be virtually independent of lead width. While sets of completely broadened states contribute to the background conductance, the s