Synchronous frequency comparison beyond the Dick limit based on dual-excitation spectrum in an optical lattice clock
文献类型：期刊论文
| 作者 | Lu, Xiaotong1,2; Zhou, Chihua1,2; Li, Ting1,2; Wang, Yebing1; Chang, Hong1,2
|
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2020-12-07 |
| 卷号 | 117期号:23页码:5 |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/5.0025097 |
| 英文摘要 | We present a synchronous frequency comparison method based on one cold-atom ensemble by using the dual-excitation spectrum technique, which can simultaneously detect the probabilities of two different clock transitions. We experimentally verify this synchronous frequency comparison method between | m F | = 9 / 2 and | m F | = 7 / 2 in a one-dimensional Sr-87 optical lattice clock and the comparison instability is well below the Dick limit. We also extend the dual-excitation spectrum method to shorten the clock feedback cycle by a half in optical lattice clocks and experimentally demonstrate that the interleaved self-comparison instability is 1.4 times lower than that of the traditional operation method. |
| 资助项目 | National Natural Science Foundation of China[61775220] ; Key Research Project of Frontier Science of the Chinese Academy of Sciences[QYZDB-SSW-JSC004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB21030100] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER INST PHYSICS |
| WOS记录号 | WOS:000598498200001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://210.72.145.45/handle/361003/12100]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Chang, Hong |
| 作者单位 | 1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Xiaotong,Zhou, Chihua,Li, Ting,et al. Synchronous frequency comparison beyond the Dick limit based on dual-excitation spectrum in an optical lattice clock[J]. APPLIED PHYSICS LETTERS,2020,117(23):5. |
| APA | Lu, Xiaotong,Zhou, Chihua,Li, Ting,Wang, Yebing,&Chang, Hong.(2020).Synchronous frequency comparison beyond the Dick limit based on dual-excitation spectrum in an optical lattice clock.APPLIED PHYSICS LETTERS,117(23),5. |
| MLA | Lu, Xiaotong,et al."Synchronous frequency comparison beyond the Dick limit based on dual-excitation spectrum in an optical lattice clock".APPLIED PHYSICS LETTERS 117.23(2020):5. |
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来源：国家授时中心
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