Quantum sensing with nanoparticles for gravimetry: when bigger is better
Quantum sensing with nanoparticles for gravimetry: when bigger is better
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DOI：
10.1515/aot-2020-0019
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发表时间：
2019-09
影响因子：
1.8
通讯作者：
Markus Rademacher;J. Millen;Y. Li
中科院分区：
文献类型：
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作者：
Markus Rademacher;J. Millen;Y. Li
摘要在2020年首次演示悬浮纳米球冷却到量子基态之后(U·Delić等人)。科学，第367卷，第892页，2020)，宏观量子传感器似乎即将出现。与其他量子系统相比，纳米球的大质量增加了纳米粒子对重力和惯性力的敏感性。在这个观点中，我们描述了使用光学悬浮纳米粒子的实验的特征(J.Millen，T.S.Monteiro，R.Pettit和A.N.Vamivakas，“悬浮粒子的光学机械”，代表Prog。物理学，第83卷，2020年，026401条)和它们提议的加速度传感实用程序。悬浮纳米颗粒平台的独特之处在于，不仅能够实现量子噪声有限的转换，而且还能够实现量子计量学预测的达到10−15 ms−2数量级的灵敏度(S.Qvarfort、A.Serafini、P.F.Barker和S.Bose，“通过非线性光学机械进行重力测量”，NAT。通讯，第9卷，2018年，第3690条)，以及用于增强重力测量的长期量子空间叠加。这遵循了开发利用叠加或纠缠的冷原子干涉仪等传感器的全球趋势。由于这些现有量子技术的重大商业发展，我们讨论了将悬浮纳米颗粒研究转化为应用的可行性。
Abstract Following the first demonstration of a levitated nanosphere cooled to the quantum ground state in 2020 (U. Delić, et al. Science, vol. 367, p. 892, 2020), macroscopic quantum sensors are seemingly on the horizon. The nanosphere’s large mass as compared to other quantum systems enhances the susceptibility of the nanoparticle to gravitational and inertial forces. In this viewpoint, we describe the features of experiments with optically levitated nanoparticles (J. Millen, T. S. Monteiro, R. Pettit, and A. N. Vamivakas, “Optomechanics with levitated particles,” Rep. Prog. Phys., vol. 83, 2020, Art no. 026401) and their proposed utility for acceleration sensing. Unique to the levitated nanoparticle platform is the ability to implement not only quantum noise limited transduction, predicted by quantum metrology to reach sensitivities on the order of 10−15 ms−2 (S. Qvarfort, A. Serafini, P. F. Barker, and S. Bose, “Gravimetry through non-linear optomechanics,” Nat. Commun., vol. 9, 2018, Art no. 3690) but also long-lived quantum spatial superpositions for enhanced gravimetry. This follows a global trend in developing sensors, such as cold-atom interferometers, that exploit superposition or entanglement. Thanks to significant commercial development of these existing quantum technologies, we discuss the feasibility of translating levitated nanoparticle research into applications.