1212.3294 (Yue Ban)

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

Yue Ban

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.

View original: http://arxiv.org/abs/1212.3294