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Trapped Ion Quantum Computing

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

arXiv
Authors: Yue Ban, Xi Chen, J. G. Muga, E. Ya Sherman

Year

2013

Paper ID

32840

Status

Preprint

Abstract Read

~2 min

Abstract Words

82

Citations

N/A

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.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2013 reference point for readers tracking recent quantum research.
  • 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.

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