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Conferences > QELS > 2012 > QM3G > QM3G.1

Coherent optical control a single hole spin in a quantum dot

T. M. Godden, J. H. Quilter, A. J. Ramsay, S. J. Boyle, I. J. Luxmoore, J. Puebla-Nunez, A. M. Fox, M. S. Skolnick, Yanwen Wu, and P. Brereton

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Abstract

We report coherent optical control of a single hole spin confined to an InAs/GaAs quantum dot. The hole spin was initialized by fast dissociation of a spin-polarized electron-hole pair, and controlled by combining coherent rotations about two perpendicular axes: Larmor precession about an external Voigt-geometry magnetic field, and optical rotation caused by the geometric phase shift induced by a picosecond laser pulse.

© 2012 Optical Society of America

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