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SiGe quantum dots for fast hole spin Rabi oscillations

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arxiv 1307.7196 v1 pith:DPIXVSHJ submitted 2013-07-27 cond-mat.mes-hall

SiGe quantum dots for fast hole spin Rabi oscillations

N. Ares , G. Katsaros , V. N. Golovach , J. J. Zhang , A. Prager , L. I. Glazman , O. G. Schmidt , S. De Franceschi This is my paper
classification cond-mat.mes-hall
keywords holeg-factorgatemeasurementsmodulationquantumrabisige
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We report on hole g-factor measurements in three terminal SiGe self-assembled quantum dot devices with a top gate electrode positioned very close to the nanostructure. Measurements of both the perpendicular as well as the parallel g-factor reveal significant changes for a small modulation of the top gate voltage. From the observed modulations we estimate that, for realistic experimental conditions, hole spins can be electrically manipulated with Rabi frequencies in the order of 100MHz. This work emphasises the potential of hole-based nano-devices for efficient spin manipulation by means of the g-tensor modulation technique.

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