Fast high fidelity hole spin initialization in a single InGaAs quantum dot

T. M. Godden; S. J. Boyle; A. J. Ramsay; A. M. Fox; M. S. Skolnick

doi:10.1063/1.3476353

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arXiv · 1006.5842

Fast high fidelity hole spin initialization in a single InGaAs quantum dot

T. M. Godden·S. J. Boyle·A. J. Ramsay·A. M. Fox·M. S. Skolnick

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Abstract

We demonstrate fast initialization of a single hole spin captured in an InGaAs quantum dot with a fidelity F>99% by applying a magnetic field parallel to the growth direction. We show that the fidelity of the hole spin, prepared by ionization of a photo-generated electron-hole pair, is limited by the precession of the exciton spin due to the anisotropic exchange interaction.

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T. M. Godden, S. J. Boyle, A. J. Ramsay, A. M. Fox, M. S. Skolnick. 2010-07-07. Fast high fidelity hole spin initialization in a single InGaAs quantum dot. https://doi.org/10.1063/1.3476353

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