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arXiv 2102.00965physics.atom-ph
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用捕获离子传感器测量可互换样品的电场噪声

Measurement of electric-field noise from interchangeable samples with a trapped-ion sensor

Kyle S. McKay, Dustin A. Hite, Philip D. Kent, Shlomi Kotler, Dietrich Leibfried, Daniel H. Slichter, Andrew C. Wilson, David P. Pappas

摘要:

我们演示了使用一个单一的捕获离子作为传感器探测电场噪声从可互换的测试表面。作为原理的证明,我们测量的幅度和距离依赖性的电场噪声从两个离子阱样样品与图案化的金电极。这种捕获的离子传感器可以与其他表面表征工具相结合,以帮助阐明从离子阱表面产生电场噪声的机制。这样的噪声对执行大规模捕获离子量子计算提出了重大障碍。

英文摘要:

We demonstrate the use of a single trapped ion as a sensor to probe electric-field noise from interchangeable test surfaces. As proof of principle, we measure the magnitude and distance dependence of electric-field noise from two ion-trap-like samples with patterned Au electrodes. This trapped-ion sensor could be combined with other surface characterization tools to help elucidate the mechanisms that give rise to electric-field noise from ion-trap surfaces. Such noise presents a significant hurdle for performing large-scale trapped-ion quantum computations.

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