Ramsay, AJ;
Boyle, SJ;
Kolodka, RS;
Oliveira, JBB;
Skiba-Szymanska, J;
Fox, AM;
Skolnick, MS;
... Hopkinson, M; + view all
(2008)
Fast optical preparation, control, and readout of a single quantum dot spin.
Physical Review Letters
, 100
(19)
, Article 197401. 10.1103/PhysRevLett.100.197401.
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Abstract
We propose and demonstrate the sequential initialization, optical control, and readout of a single spin trapped in a semiconductor quantum dot. Hole spin preparation is achieved through ionization of a resonantly excited electron-hole pair. Optical control is observed as a coherent Rabi rotation between the hole and charged-exciton states, which is conditional on the initial hole spin state. The spin-selective creation of the charged exciton provides a photocurrent readout of the hole spin state. © 2008 The American Physical Society.
| Type: | Article |
|---|---|
| Title: | Fast optical preparation, control, and readout of a single quantum dot spin |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.100.197401 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.100.197401 |
| Additional information: | © 2008 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/45961 |
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