Ramsay, A. J.Boyle, S. J.Kolodka, R. S.Oliveira, J. B.B. [UNESP]Skiba-Szymanska, J.Liu, H. Y.Hopkinson, M.Fox, A. M.Skolnick, M. S.2022-04-282022-04-282008-05-13Physical Review Letters, v. 100, n. 19, 2008.0031-90071079-7114http://hdl.handle.net/11449/225165We 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.engArtigo10.1103/PhysRevLett.100.1974012-s2.0-43749108833