Fast spin control in a two-electron double quantum dot by dynamical invariants
Quantum Physics
2013-09-10 v1 Mesoscale and Nanoscale Physics
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.
Keywords
Cite
@article{arxiv.1309.1916,
title = {Fast spin control in a two-electron double quantum dot by dynamical invariants},
author = {Yue Ban and Xi Chen and J. G. Muga and E. Ya Sherman},
journal= {arXiv preprint arXiv:1309.1916},
year = {2013}
}
Comments
8 pages, 6 figures