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Fast, High Fidelity, Single-Shot Quantum Non-Demolition Measurement of a Quantum Dot Electron Spin using Cavity Exciton-Polariton Resonance

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Abstract

We propose a novel scheme for a single-shot, fast (10s of nanoseconds), high fidelity (99.95%) quantum non-demolition (QND) readout of quantum dot (QD) electron spins based on their spin-dependent Coulomb exchange interaction with optically-excited quantum well (QW) microcavity exciton-polaritons.

© 2014 Optical Society of America

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