1.
Phys Rev Lett
; 100(19): 197401, 2008 May 16.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18518484
RESUMO
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.