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arXiv · 1309.1916

Fast spin control in a two-electron double quantum dot by dynamical invariants

Yue Ban·Xi Chen·J. G. Muga·E. Ya Sherman
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Abstract

Inverse engineering of electric fields has been recently proposed to achieve fast and robust spin control in a single-electron quantum dot with spin-orbit coupling. In this paper we design, by inverse engineering based on Lewis-Riesenfeld invariants, time-dependent electric fields to realize fast transitions in the selected singlet-triplet subspace of a two-electron double quantum dot. We apply two-mode driving schemes, directly employing the Lewis-Riesenfeld phases, to minimize the electric field necessary to design flexible protocols and perform spin manipulation on the chosen timescale.

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Yue Ban, Xi Chen, J. G. Muga, E. Ya Sherman. 2013-09-07. Fast spin control in a two-electron double quantum dot by dynamical invariants. https://arxiv.org/abs/1309.1916

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