Spin-Orbit Mediated Control of Spin Qubits
Mesoscale and Nanoscale Physics
2007-05-23 v2 Quantum Physics
Abstract
We propose to use the spin-orbit interaction as a means to control electron spins in quantum dots, enabling both single qubit and two qubit operations. Very fast single qubit operations may be achieved by temporarily displacing the electrons. For two qubit operations the coupling mechanism is based on a combination of the spin-orbit coupling and the mutual long-ranged Coulomb interaction. Compared to existing schemes using the exchange coupling, the spin-orbit induced coupling is less sensitive to random electrical fluctuations in the electrodes defining the quantum dots.
Cite
@article{arxiv.cond-mat/0603559,
title = {Spin-Orbit Mediated Control of Spin Qubits},
author = {Christian Flindt and Anders S. Sorensen and Karsten Flensberg},
journal= {arXiv preprint arXiv:cond-mat/0603559},
year = {2007}
}
Comments
4 pages, 3 figures; minor changes - final version as published in Phys. Rev. Lett