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首页> 外文期刊>Applied Physics Letters >Nuclear spin population and its control toward initialization using an all-electrical submicron scale nuclear magnetic resonance device
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Nuclear spin population and its control toward initialization using an all-electrical submicron scale nuclear magnetic resonance device

机译:全电亚微米级核磁共振装置的核自旋群及其对初始化的控制

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摘要

The authors study the nuclear spin population in a GaAs quantum well structure and demonstrate its initialization using an all-electrical nuclear magnetic resonance (NMR) device. In their device, nuclear spins are dynamically polarized in a submicron scale region defined by split gates. The relative population of each nuclear spin state is estimated from resistively detected NMR spectra combined with numerical analysis. They find that nuclear spin populations are determined by electron spin configurations. By applying radio frequency pulses to the strongly polarized nuclear spins, they demonstrate the creation of two-qubit effective pure states, which is a crucial step toward NMR quantum computation.
机译:作者研究了GaAs量子阱结构中的核自旋种群,并证明了使用全电核磁共振(NMR)装置对其进行初始化。在他们的装置中,核自旋在分裂门限定的亚微米尺度区域内动态极化。从电阻检测的NMR光谱结合数值分析可以估算出每个核自旋态的相对种群。他们发现核自旋种群是由电子自旋构型决定的。通过将射频脉冲施加到强极化的核自旋上,他们证明了产生两个量子比特的有效纯态,这是迈向NMR量子计算的关键步骤。

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