2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98729Ultrafast initialization enables fault-tolerant processing of quantum information while QND readout enables scalable quantum computation. By spatially assembling photon resonators and wave-guides around an n-doped nanodot and by temporally designing optical pump pulses, an efficient quantum pathway can be established from an electron spin to a charged exciton to a cavity photon and finally to a flying photon in the waveguide. Such control of vacuum-nanodot coupling can be exploited for ultrafast initialization and QND readout of the spin, which are particularly compatible with the optically driven spin quantum computers.4 pages 3 figuresMesoscale and Nanoscale PhysicsQuantum PhysicsUltrafast initialization and QND-readout of a spin qubit via control of nanodot-vacuum couplingtext