Synthetic frequency protocol for Ramsey spectroscopy of clock transitions
Synthetic frequency protocol for Ramsey spectroscopy of clock transitions
复制标题
时钟跃迁拉姆齐光谱的合成频率协议
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
T. Zanon
中科院分区：
文献类型：
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作者：
V. Yudin;A. Taichenachev;M. Basalaev;T. Zanon
我们开发了一种通用的方法，利用拉姆齐光谱学显著抑制任何类型原子钟的探测引起的位移。我们的方法是基于对合成频率概念的适应[V.I.Yudin等人，Phys.莱特牧师。107,030801(2011年)](以前为抑制黑体辐射漂移而开发的)到拉姆齐光谱学，使用不同暗时间间隔的询问。结合所谓的超Ramsey光谱学技术获得了对这种位移最显著的抑制[V.I.Yudin等人，Phys.修订A 82,011804(R)(2010年)]。在这种情况下，对于几乎所有的光学原子钟，探测引起的频率漂移可以被相当大的抑制，从计量学上的有效水平到${10}^{ensuremath18}$$的分数水平以下。与其他超Ramsey方法相比，我们方法的主要优点是[R.Hobson等人，Phys.修订版A 93,010501(R)(2016年)；T.Zanon-Willette等人，Phys.A 93,042506(2016年)]源于它在存在退相干的情况下更高的效率和稳健性。
We develop a universal method to significantly suppress probe-induced shifts in any type of atomic clock using Ramsey spectroscopy. Our approach is based on the adaptation of the synthetic frequency concept [V. I. Yudin et al., Phys. Rev. Lett. 107, 030801 (2011)] (previously developed for blackbody radiation shift suppression) to Ramsey spectroscopy with the use of interrogations with different dark time intervals. The most significant suppression of the shift is obtained in combination with the so-called hyper-Ramsey spectroscopy technique [V. I. Yudin et al., Phys. Rev. A 82, 011804(R) (2010)]. In this case, the probe-induced frequency shifts can be suppressed considerably from metrologically significant levels to below a fractional level of ${10}^{ensuremath{-}18}$ for practically any optical atomic clocks. The main advantage of our method in comparison with other hyper-Ramsey approaches [R. Hobson et al., Phys. Rev. A 93, 010501(R) (2016); T. Zanon-Willette et al., Phys. Rev. A 93, 042506 (2016)] derives from its much greater efficiency and robustness in the presence of decoherence.