title: Quantum readout and fast initialization of nuclear spin qubits with electric currents.
abstract: Nuclear spin qubits have the longest coherence times in the solid state, but their quantum readout and initialization is a great challenge. We present a theory for the interaction of an electric current with the nuclear spins of donor impurities in semiconductors. The theory yields a sensitivity criterion for quantum detection of nuclear spin states using electrically detected magnetic resonance, as well as an all-electrical method for fast nuclear spin qubit initialization.
authors.affiliation: Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia V8W 3P6, Canada.
authors.forename: Noah
authors.initials: N
authors.lastname: Stemeroff
authors.forename: Rogério
authors.initials: R
authors.lastname: de Sousa