外文题目: Closely interleaved self-comparison method applied to precise measurement
作者: 邹凡; 魏荣; 董日昌; 陈婷婷; 王文丽; 王育竹
刊名: Chin. Opt. Lett.
年: 2016 卷: 14 期: 8 文章编号：81201
英文关键词:

RB-87 ATOMIC FOUNTAIN; FREQUENCY STANDARD; CLOCK; ACCURACY
英文摘要:
A self-comparison method with closely interleaved switching states is analyzed and used to evaluate some type-B uncertainties of an Rb-87 atomic fountain clock. Free from additional frequency reference, the method can be applied to a running fountain to reach a precision beyond its uncertainty. A verification experiment proves an uncertainty of 9.2 x 10(-16) at an averaging time of 242500 s. Further, the method is applied to measure light shift, and no visible relative frequency shift is found in the fountain within the uncertainty of 2.1 x 10(-15). When applied to the evaluation of a cold collisional shift, the result gives a -2.2 x 10(-15) shift with a 9.5 x 10(-16) uncertainty.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.3788/COL201614.081201


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