Quantum read-out and fast initialization of nuclear spin qubits with electric currents

Physical Review Letters 19 (107) (2011)

Authors
Noah Stemeroff
Universität Bonn
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.
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