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arXiv · 0805.2074

Coherent Population Trapping of an Electron Spin in a Single Negatively Charged Quantum Dot

Xiaodong Xu·Bo Sun·Paul R. Berman·Duncan G. Steel·Allan S. Bracker·Dan Gammon·L. J. Sham
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Abstract

Coherent population trapping (CPT) refers to the steady-state trapping of population in a coherent superposition of two ground states which are coupled by coherent optical fields to an intermediate state in a three-level atomic system. Recently, CPT has been observed in an ensemble of donor bound spins in GaAs and in single nitrogen vacancy centers in diamond by using a fluorescence technique. Here we report the demonstration of CPT of an electron spin in a single quantum dot (QD) charged with one electron.

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Xiaodong Xu, Bo Sun, Paul R. Berman, Duncan G. Steel, Allan S. Bracker, Dan Gammon, L. J. Sham. 2008-05-14. Coherent Population Trapping of an Electron Spin in a Single Negatively Charged Quantum Dot. https://doi.org/10.1038/nphys1054

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