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Quantum nondemolition measurement of a single electron spin in a quantum dot

Mitsuro Sugita·Susumu Machida·Yoshihisa Yamamoto
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Abstract

We propose a scheme for the quantum nondemolition (QND) measurement of a single electron spin in a single quantum dot (QD). Analytical expressions are obtained for the optical Faraday effect between a quantum dot exciton and microcavity field. The feasibility of the QND measurement of a single electron spin is discussed for a GaAs/AlAs microcavity with an InAs QD.

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Mitsuro Sugita, Susumu Machida, Yoshihisa Yamamoto. 2003-01-15. Quantum nondemolition measurement of a single electron spin in a quantum dot. https://arxiv.org/abs/quant-ph/0301064

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