Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock

doi:10.1088/1674-1056/25/10/103202

中国物理B ›› 2016, Vol. 25 ›› Issue (10): 103202-103202.doi: 10.1088/1674-1056/25/10/103202

• SPECIAL TOPIC—Soft matter and biological physics (Review) • 上一篇下一篇

Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock

Yi-Lin Xu(徐艺琳), Xin-Ye Xu(徐信业)

State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China

收稿日期:2016-05-03 修回日期:2016-08-01 出版日期:2016-10-05 发布日期:2016-10-05
通讯作者: Xin-Ye Xu E-mail:xyxu@phy.ecnu.edu.cn
基金资助:
Project supported by the National Key Basic Research and Development Program of China (Grant No. 2012CB821302), the National Natural Science Foundation of China (Grant No. 11134003), the National High Technology Research and Development Program of China (Grant No. 2014AA123401), and the Shanghai Excellent Academic Leaders Program of China (Grant No. 12XD1402400).

Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock

Yi-Lin Xu(徐艺琳), Xin-Ye Xu(徐信业)

State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China

Received:2016-05-03 Revised:2016-08-01 Online:2016-10-05 Published:2016-10-05
Contact: Xin-Ye Xu E-mail:xyxu@phy.ecnu.edu.cn
Supported by:
Project supported by the National Key Basic Research and Development Program of China (Grant No. 2012CB821302), the National Natural Science Foundation of China (Grant No. 11134003), the National High Technology Research and Development Program of China (Grant No. 2014AA123401), and the Shanghai Excellent Academic Leaders Program of China (Grant No. 12XD1402400).

摘要/Abstract

摘要：

We accurately evaluate the blackbody-radiation shift in a ¹⁷¹Yb optical lattice clock by utilizing temperature measurement and numerical simulation. In this work. three main radiation sources are considered for the blackbody-radiation shift, including the heated atomic oven, the warm vacuum chamber, and the room-temperature vacuum windows. The temperatures on the outer surface of the vacuum chamber are measured during the clock operation period by utilizing seven calibrated temperature sensors. Then we infer the temperature distribution inside the vacuum chamber by numerical simulation according to the measured temperatures. Furthermore, we simulate the temperature variation around the cold atoms while the environmental temperature is fluctuating. Finally, we obtain that the total blackbody-radiation shift is -1.289(7) Hz with an uncertainty of 1.25×10^-17 for our ¹⁷¹Yb optical lattice clock. The presented method is quite suitable for accurately evaluating the blackbody-radiation shift of the optical lattice clock in the case of lacking the sensors inside the vacuum chamber.

关键词: optical lattices, blackbody radiation shift, temperature measurement, finite element analysis

Abstract:

Key words: optical lattices, blackbody radiation shift, temperature measurement, finite element analysis

中图分类号: (Line shapes, widths, and shifts)

32.70.Jz

37.10.Jk (Atoms in optical lattices) 44.40.+a (Thermal radiation) 47.11.Fg (Finite element methods)

徐艺琳, 徐信业. Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock[J]. 中国物理B, 2016, 25(10): 103202-103202.

Yi-Lin Xu(徐艺琳), Xin-Ye Xu(徐信业). Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock[J]. Chin. Phys. B, 2016, 25(10): 103202-103202.

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Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock

Analysis of the blackbody-radiation shift in an ytterbium optical lattice clock

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