Dynamic Rabi oscillations in a quantum dot embedded in a nanobridge in the presence of surface acoustic waves

Mourokh, L.; Wixforth, A.; Beil, F.; Bichler, M.; Wegscheider, W. and Blick, R. H. (2017): Dynamic Rabi oscillations in a quantum dot embedded in a nanobridge in the presence of surface acoustic waves. In: 20th international Conference On Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (Edison 20), Vol. 906, 12009

Abstract

A quantum dot is created within a suspended nanobridge containing a two-dimensional electron gas. The electron current through this dot exhibits well-pronounced Coulomb blockade oscillations. When surface acoustic waves (SAW) are driven through the nanobridge, Coulomb blockade peaks are shifted. To explain this feature, we derive the expressions for the quantum dot level populations and electron currents through these levels and show that SAW-induced Rabi oscillations lead to the observed phenomenology.

• Item Type: Journal article
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 1742-6588
• Language: English