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Phonon induced Rabi frequency renormalization of optically driven single InGaAs/GaAs quantum dots
- Source :
- Physical Review Letters 105 177402 (2010)
- Publication Year :
- 2010
-
Abstract
- We study optically driven Rabi rotations of a quantum dot exciton transition between 5 and 50 K, and for pulse-areas of up to $14\pi$. In a high driving field regime, the decay of the Rabi rotations is nonmonotonic, and the period decreases with pulse-area and increases with temperature. By comparing the experiments to a weak-coupling model of the exciton-phonon interaction, we demonstrate that the observed renormalization of the Rabi frequency is induced by fluctuations in the bath of longitudinal acoustic phonons, an effect that is a phonon analogy of the Lamb-shift.<br />Comment: 4-pages, 2 figs, final version published in PRL
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Physical Review Letters 105 177402 (2010)
- Publication Type :
- Report
- Accession number :
- edsarx.1005.1580
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.105.177402