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arXiv · 1910.10590

Possibility to construct a clock on non 0-0 transition

Chao Li·Fuyu Sun·Jie Liu·Xiaofeng Li·Jie Ma·Guangkun Guo·Dong Hou·Shougang Zhang
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Abstract

In this letter, we discuss the possibility of non 0-0 atomic lines as the reference transitions to design a new atomic clock. The proposed clock operates in high C-field regime offering an interesting alternative to conventional clock based on 0-0 transition as the former can also eliminate the influence of the first-order Zeeman effect. Using the Breit-Rabi formula, we theoretically calculate the magnetically insensitive frequency and the corresponding C-field value for different alkali atom species. We also provide an estimate of the uncertainty of frequency shift to change of C-field. We show that a high C-field clock based on Cs: 3,-1 - 4,0, 3,0 - 4,-1, and 3,-1 - 4,-1, can achieve a bias of 10-14 with a C-field of 10-6 uncertainty. The free first-order Zeeman effect C-field for 3,-1 - 4,0 or 3,0 - 4,-1 transition is about one half that for 3,-1 - 4,-1 transition.

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Chao Li, Fuyu Sun, Jie Liu, Xiaofeng Li, Jie Ma, Guangkun Guo, Dong Hou, Shougang Zhang. 2019-10-23. Possibility to construct a clock on non 0-0 transition. https://arxiv.org/abs/1910.10590

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