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Quality estimation of non-demolition measurement with lossy atom-light hybrid interferometers
Optics Express ( IF 3.2 ) Pub Date : 2020-03-23 , DOI: 10.1364/oe.385580
D.-H. Fan , S.-Y. Chen , Z.-F. Yu , Keye Zhang , L. Q. Chen

The atom-light hybrid interferometer recently attracted much attention in the research of precision metrology for its combination of light and atomic spin wave. With the AC Stark effect and proper design, it can be applied in the scheme of quantum non-demolition (QND) measurement of photon numbers. In this work, we apply the QND criteria to the scheme and theoretically derive its explicit formulas with various losses of the atomic-light hybrid interferometer. With the formulas and actual experiment parameters, we estimate and compare the performance of the vapor-atom-based and cold-atom-based hybrid interferometer in the QND measurement, analyze the influences of different kinds of losses, and provide optimized working parameter ranges of the interferometer.

中文翻译:

有损原子光混合干涉仪的非爆破测量的质量估计

原子光混合干涉仪因其结合了光和原子自旋波而在精密计量学领域引起了广泛关注。借助AC Stark效应和适当的设计,它可以应用于光子数的量子不爆破(QND)测量方案。在这项工作中,我们将QND准则应用于该方案,并在理论上推导其具有各种损失的原子光混合干涉仪的明确公式。利用公式和实际实验参数,我们估算并比较了基于汽原子和基于冷原子的混合干涉仪在QND测量中的性能,分析了各种损耗的影响,并提供了最佳的工作参数范围。干涉仪。
更新日期:2020-03-31
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