Fast and robust spin manipulation in a quantum dot by electric fields
arXiv:1208.4890 · doi:10.1103/PhysRevLett.109.206602
Abstract
We apply an invariant-based inverse engineering method to control by time-dependent electric fields electron spin dynamics in a quantum dot with spin-orbit coupling in a weak magnetic field. The designed electric fields provide a shortcut to adiabatic processes that flips the spin rapidly, thus avoiding decoherence effects. This approach, being robust with respect to the device-dependent noise, can open new possibilities for the spin-based quantum information processing.
7 pages, 6 figures, with supplemental material. Errors in the published version have been corrected
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