Quantum readout and fast initialization of nuclear spin qubits with electric currents.
Quantum readout and fast initialization of nuclear spin qubits with electric currents.
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DOI：
10.1103/physrevlett.107.197602
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发表时间：
2011-08
影响因子：
8.6
通讯作者：
Noah Stemeroff;R. de Sousa
中科院分区：
文献类型：
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作者：
Noah Stemeroff;R. de Sousa
核自旋量子位在固态下具有最长的相干时间，但它们的量子读出和初始化是一个巨大的挑战。我们提出了电流与半导体中施主杂质的核自旋相互作用的理论。该理论提出了使用电检测磁共振来量子检测核自旋态的灵敏度标准，以及用于快速核自旋量子位初始化的全电方法。
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.