Nuclear-spin qubits interaction in mesoscopic wires and rings
arXiv:cond-mat/0011288 · doi:10.1088/0953-8984/15/6/326
Abstract
Theoretical study of the indirect coupling of nuclear spins (qubits) embedded into a mesoscopic ring and in a finite length quantum wire in a magnetic field is presented. It is found that the hyperfine interaction, via the conduction electrons, between nuclear spins exhibits sharp maxima as function of the magnetic field and nuclear spin positions. This phenomenon can be used for manipulation of qubits with almost atomic precision. Experimental feasibility and implications for quantum logics devices is discussed.
3 figures, 12 pages
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Cited by in corpus (10)
- Neuromorphic, Digital and Quantum Computation with Memory Circuit Elements
- Laser-controlled local magnetic field with semiconductor quantum rings
- Externally controlled local magnetic field in a conducting mesoscopic ring coupled to a quantum wire
- Polarization of Nuclear Spins from the Conductance of Quantum Wire
- Slow Spin Relaxation in Two-Dimensional Electron Systems with Antidots
- Ruderman-Kittel-Kasuya-Yosida spin density oscillations: impact of the finite radius of the exchange interaction
- Quantum information processing based on P-31 nuclear spin qubits in a quasi-one-dimensional Si-28 nanowire
- Influence of Nuclear Spin Polarization on Quantum Wire Conductance
- Magnetization of Nuclear-Spin-Polarization-Induced Quantum Ring
- Mass modification of itinerant carriers in RKKY oscillations induced by finite range exchange interactions