2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/160698We propose and demonstrate the sequential initialization, optical control, and read-out 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 read-out of the hole spin state.5 pages, 3 figures, resubmitted to PRL, changes due to referee commentsMesoscale and Nanoscale Physicstext