Precision measurements of the ground-state hyperfine splitting of 85Rb using an atomic fountain clock

被引：13

作者：

Wang, Qian ^{[1
,2
]}

Zhang, Ning ^{[1
,2
]}

Guang, Wei ^{[3
]}

Zhang, Shougang ^{[3
]}

Wang, Wenli ^{[1
]}

Wei, Rong ^{[1
]}

Wang, Yuzhu ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China

来源：

PHYSICAL REVIEW A | 2019年 / 100卷 / 02期

关键词：

SHIFTS;

D O I：

10.1103/PhysRevA.100.022510

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The ground state hyperfine splitting of Rb-85 was measured precisely using a rubidium-85 atomic fountain clock. About 5 x 10(5) atoms were detected at the temperature of 4 mu K, and a Ramsey fringe was obtained with FWHM of 0.95 Hz. We present a measurement of the Rb-85 ground state hyperfine splitting with a 5 x 10(-14) uncertainty. The measured Rb-85 ground-state hyperfine splitting was v = 3.035 732 444 821 8(2) GHz. This measurement is more precise than previously reported values by 4 orders of magnitude, and differs from the previously reported value by 5.8218 Hz.

引用

页数：6

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