Fast adiabatic-like spin manipulation in a two-electron double quantum dot

2012/12/13 by Yue Ban, Ban, Yue
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Physics (quant-ph) #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.48550/arxiv.1212.3294

4 pages, 3 figures

arxiv created 2012/12/13 · arxiv updated 2012/12/14

Abstract

We apply the transitionless quantum driving method to control the electron spin of a two-electron double quantum dot with spin-orbit coupling by time-dependent electric fields. The x and y components of applied electric fields in each dot are designed to achieve fast adiabatic-like passage in the nanosecond timescale. To simplify the setup, we can further transform Hamiltonian by z axis to design an alternative speed-up adiabatic passage, without using the applied electric field in y direction.

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