Quantum read-out and fast initialization of nuclear spin qubits with electric currents
arXiv:1108.0699 · doi:10.1103/PhysRevLett.107.197602
Abstract
Nuclear spin qubits have the longest coherence times in the solid state, but their quantum read-out 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.
Final version to be published in PRL
References in corpus (13)
- Solid state quantum memory using the 31P nuclear spin
- Spin Precession and Real Time Dynamics in the Kondo Model: A Time-Dependent Numerical Renormalization-Group Study
- Coherence Time of a Solid-State Nuclear Qubit
- Electrical detection of 31P spin quantum states
- Electrically-detected magnetic resonance in ion-implanted Si:P nanostructures
- Fast nuclear spin hyperpolarization of phosphorus in silicon
- Long spin coherence in silicon with an electrical spin trap readout
- Simultaneous sub-second hyperpolarization of the nuclear and electron spins of phosphorus in silicon
- Spin-Dependent Scattering off Neutral Antimony Donors in 28-Si Field-Effect Transistors
- Electrical Detection of Coherent Nuclear Spin Oscillations in Phosphorus-Doped Silicon Using Pulsed ENDOR
- Quantum non-demolition measurements of single donor spins in semiconductors
- Electrically detected magnetic resonance of neutral donors interacting with a two-dimensional electron gas
- Spin-dependent scattering in a silicon transistor