中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Evaluation of the systematic shifts and absolute frequency measurement of a single Ca+ ion frequency standard

文献类型:期刊论文

作者Huang, Yao1,2; Liu, Peiliang1,2,3; Bian, Wu1,2,3; Guan, Hua1,2; Gao, Kelin1,2
刊名APPLIED PHYSICS B-LASERS AND OPTICS
出版日期2014
卷号114期号:1-2页码:189-201
英文摘要This paper provides a detailed description of the 40 Ca+ optical frequency standard uncertainty evaluation and the absolute frequency measurement of the clock transition, as a summary and supplement for the published papers of Yao Huang et al. (Phys Rev A 84: 053841, 1) and Huang et al. (Phys Rev A 85: 030503, 2). The calculation of systematic frequency shifts, expected for a single trapped Ca+ ion optical frequency standard with a "clock" transition at 729 nm is described. There are several possible causes of systematic frequency shifts that need to be considered. In general, the frequency was measured with an uncertainty of 10(-15) level, and the overall systematic shift uncertainty was reduced to below a part in 10(-15). Several frequency shifts were calculated for the Ca+ ion optical frequency standard, including the trap design, optical and electromagnetic fields geometry and laboratory conditions, including the temperature condition and the altitude of the Ca+ ion. And we measured the absolute frequency of the 729-nm clock transition at the 10(-15) level. An fs comb is referenced to a hydrogen maser, which is calibrated to the SI-second through the Global Positioning System (GPS). Using the GPS satellites as a link, we can calculate the frequency difference of the two hydrogen masers with a long distance, one in WIPM (Wuhan) and the other in National Institute of Metrology (NIM, Beijing). The frequency difference of the hydrogen maser in NIM (Beijing) and the SI-second calculated by BIPM is published on the BIPM web site every 1 month, with a time interval of every 5 days. By analyzing the experimental data obtained within 32 days of a total averaging time of >2 x 10(6) s, the absolute frequency of the Ca-40(+) 4 s S-2(1/2)-3d D-2(5/2) clock transition is measured as 411 042 129 776 393.0 (1.6) Hz with a fractional uncertainty of 3.9 x 10(-15).
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Optics ; Physics, Applied
研究领域[WOS]Optics ; Physics
关键词[WOS]SR LATTICE CLOCK ; FRACTIONAL UNCERTAINTY ; OPTICAL CLOCKS ; TRANSITION ; METROLOGY ; SR-88(+) ; GPS
收录类别SCI
语种英语
WOS记录号WOS:000332850800021
公开日期2016-05-09
源URL[http://ir.wipm.ac.cn/handle/112942/1472]  
专题武汉物理与数学研究所_原子频标研究部
作者单位1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
2.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
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GB/T 7714
Huang, Yao,Liu, Peiliang,Bian, Wu,et al. Evaluation of the systematic shifts and absolute frequency measurement of a single Ca+ ion frequency standard[J]. APPLIED PHYSICS B-LASERS AND OPTICS,2014,114(1-2):189-201.
APA Huang, Yao,Liu, Peiliang,Bian, Wu,Guan, Hua,&Gao, Kelin.(2014).Evaluation of the systematic shifts and absolute frequency measurement of a single Ca+ ion frequency standard.APPLIED PHYSICS B-LASERS AND OPTICS,114(1-2),189-201.
MLA Huang, Yao,et al."Evaluation of the systematic shifts and absolute frequency measurement of a single Ca+ ion frequency standard".APPLIED PHYSICS B-LASERS AND OPTICS 114.1-2(2014):189-201.

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来源:武汉物理与数学研究所

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