title: Spin-orbit mediated control of spin qubits.
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.
authors.affiliation: Niels Bohr Institute, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
authors.forename: Christian
authors.initials: C
authors.lastname: Flindt
authors.forename: Anders S
authors.initials: AS
authors.lastname: Sørensen
authors.forename: Karsten
authors.initials: K
authors.lastname: Flensberg