Abstract
We manipulate a single electron in a fully tunable double quantum dot using microwave excitation. Under resonant conditions, microwaves drive transitions between the and charge states of the double dot. Local quantum point contact charge detectors enable a direct measurement of the photon-induced change in occupancy of the charge states. From charge sensing measurements, we find and a lower bound estimate for of 400 ps for the charge two-level system.
- Received 8 August 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.186802
©2004 American Physical Society