%0 Journal Article
%T Fast spin control in a two-electron double quantum dot by dynamical invariants
%A Yue Ban
%A Xi Chen
%A J. G. Muga
%A E. Ya Sherman
%J Physics
%D 2013
%I arXiv
%X 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.
%U http://arxiv.org/abs/1309.1916v1