Manipulation of a Single Charge in a Double Quantum Dot
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- 27 October 2004
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 93 (18) , 186802
- https://doi.org/10.1103/physrevlett.93.186802
Abstract
We manipulate a single electron in a fully tunable double quantum dot using microwave excitation. Under resonant conditions, microwaves drive transitions between the (1,0) and (0,1) 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 T1 approximately 16 ns and a lower bound estimate for T*(2) of 400 ps for the charge two-level system.Keywords
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