title: Spin quantum bit with ferromagnetic contacts for circuit QED.
abstract: We theoretically propose a scheme for a spin quantum bit based on a double quantum dot contacted to ferromagnetic elements. Interface exchange effects enable an all electric manipulation of the spin and a switchable strong coupling to a superconducting coplanar waveguide cavity. Our setup does not rely on any specific band structure and can in principle be realized with many different types of nanoconductors. This allows us to envision on-chip single spin manipulation and readout using cavity QED techniques.
authors.affiliation: Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 24 rue Lhomond, 75231 Paris Cedex 05, France.
authors.forename: Audrey
authors.initials: A
authors.lastname: Cottet
authors.forename: Takis
authors.initials: T
authors.lastname: Kontos