We elaborate on a number of issues concerning our recent proposal for spin-qubit manipulation in nanowires using the spin-orbit coupling. We discuss the experimental status and describe in further detail the scheme for single-qubit rotations. We present a derivation of the effective two-qubit coupling which can be extended to higher orders in the Coulomb interaction. The analytic expression for the coupling strength is shown to agree with numerics.
@article{arxiv.cond-mat/0612293,
title = {Spin-orbit induced spin-qubit control in nanowires},
author = {Christian Flindt and Anders S. Sorensen and Karsten Flensberg},
journal= {arXiv preprint arXiv:cond-mat/0612293},
year = {2007}
}