Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock
文献类型：期刊论文
| 作者 | Xia, Jing-Jing2; Lu, Xiao-Tong1,2; Chang, Hong1,2
|
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 31期号:3页码:5 |
| 关键词 | optical Ramsey spectrum optical lattice clock stability coherence time |
| ISSN号 | 1674-1056 |
| DOI | 10.1088/1674-1056/ac11e0 |
| 英文摘要 | The optical Ramsey spectrum is experimentally realized in an Sr-87 optical lattice clock, and the measured linewidth agrees well with theoretical expectation. The coherence time between the clock laser and the atoms, which indicates the maximum free evolution period of using Ramsey detection to measure the atom-laser phase information, is determined as 340(23) ms by measuring the fringe contrasts of the Ramsey spectrum as a function of the free evolution period. Furthermore, with the same clock duty cycle of about 0.1, the clock stability is measured by using the Ramsey and Rabi spectra, respectively. The experimental and theoretical results show approximately the same stability as the two detection methods, which indicates that Ramsey detection cannot obviously improve the clock stability until the clock duty cycle is large enough. Thus, it is of great significance to choose the detection method of a specific clock. |
| WOS关键词 | COHERENCE ; QUANTUM |
| 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 |
| WOS记录号 | WOS:000757598000001 |
| 出版者 | IOP Publishing Ltd |
| 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/361003/13915]  |
| 专题 | 国家授时中心_量子频标研究室 |
| 通讯作者 | Chang, Hong |
| 作者单位 | 1.Univ Chinese Acad Sci CAS, Beijing 100049, Peoples R China 2.Natl Time Serv Ctr, CAS Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Jing-Jing,Lu, Xiao-Tong,Chang, Hong. Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock[J]. CHINESE PHYSICS B,2022,31(3):5. |
| APA | Xia, Jing-Jing,Lu, Xiao-Tong,&Chang, Hong.(2022).Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock.CHINESE PHYSICS B,31(3),5. |
| MLA | Xia, Jing-Jing,et al."Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock".CHINESE PHYSICS B 31.3(2022):5. |
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来源：国家授时中心
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