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

Mitsuro Sugita; Susumu Machida; Yoshihisa Yamamoto

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

Quantum Physics 2007-05-23 v1

Authors: Mitsuro Sugita , Susumu Machida , Yoshihisa Yamamoto

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.

Keywords

quantum nondemolition measurement electron spin quantum dot faraday effect microcavity

Cite

@article{arxiv.quant-ph/0301064,
  title  = {Quantum nondemolition measurement of a single electron spin in a quantum dot},
  author = {Mitsuro Sugita and Susumu Machida and Yoshihisa Yamamoto},
  journal= {arXiv preprint arXiv:quant-ph/0301064},
  year   = {2007}
}

Comments

6 pages, 6 figures

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