Manipulation of a single charge in a double quantum dot

Preprint

6 August 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0408139

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 T1~16 ns and a lower bound estimate for T2* of 400 ps for the charge two-level system.

Keywords

DOUBLE QUANTUM DOT
SINGLE ELECTRON
SINGLE CHARGE
QUANTUM POINT
LEVEL SYSTEM
QUANTUM DOT
MICROWAVE

All Related Versions

Version 1, 2004-08-06, ArXiv
Published version: Physical Review Letters, 93 (18), 186802.

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