Spin-exchange relaxation of naturally abundant Rb in a K-Rb-21Ne self-compensated atomic comagnetometer

doi:10.1088/1674-1056/ab75d3

中国物理B ›› 2020, Vol. 29 ›› Issue (4): 43204-043204.doi: 10.1088/1674-1056/ab75d3

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne self-compensated atomic comagnetometer

Yan Lu(卢妍), Yueyang Zhai(翟跃阳), Yong Zhang(张勇), Wenfeng Fan(范文峰), Li Xing(邢力), Wei Quan(全伟)

1 School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China;
2 Research Institute of Frontier Science, Beihang University, Beijing 100191, China;
3 Beijing Academy of Quantum Information Sciences, Beijing 100191, China;
4 Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing 100191, China

收稿日期:2019-12-24 修回日期:2020-01-28 出版日期:2020-04-05 发布日期:2020-04-05
通讯作者: Wei Quan E-mail:quanwei@buaa.edu.cn
基金资助:
Project supported by the National Key R&D Program of China (Grant Nos. 2016YFB0501600 and 2017YFB0503100), the National Natural Science Foundation of China (Grant Nos. 61773043, 61673041, 61721091, and 61703025), and the National Science Fund for Distinguished Young Scholars of China (Grant No. 61925301).

Spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne self-compensated atomic comagnetometer

Yan Lu(卢妍)¹, Yueyang Zhai(翟跃阳)^2,3,4, Yong Zhang(张勇)¹, Wenfeng Fan(范文峰)¹, Li Xing(邢力)¹, Wei Quan(全伟)^2,3,4

1 School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China;
2 Research Institute of Frontier Science, Beihang University, Beijing 100191, China;
3 Beijing Academy of Quantum Information Sciences, Beijing 100191, China;
4 Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing 100191, China

Received:2019-12-24 Revised:2020-01-28 Online:2020-04-05 Published:2020-04-05
Contact: Wei Quan E-mail:quanwei@buaa.edu.cn
Supported by:
Project supported by the National Key R&D Program of China (Grant Nos. 2016YFB0501600 and 2017YFB0503100), the National Natural Science Foundation of China (Grant Nos. 61773043, 61673041, 61721091, and 61703025), and the National Science Fund for Distinguished Young Scholars of China (Grant No. 61925301).

摘要/Abstract

摘要： The total effective spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne comagnetometer is analyzed, and the results show that the coexistence of ⁸⁷Rb and ⁸⁵Rb isotopes in the same volume can lead to a large extra spin-exchange broadening compared to pure ⁸⁷Rb. This broadening mainly comes from the contribution of the equivalent reduction in the Rb spin-exchange rate. On this basis, an approximate relaxation model is proposed and experimentally demonstrated to be more accurate than that from a previous work. This study also provides a method for determining the properties of alkali-metal vapor cells.

关键词: comagnetometer, naturally abundant Rb, spin-exchange relaxation, spin polarization

Abstract: The total effective spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne comagnetometer is analyzed, and the results show that the coexistence of ⁸⁷Rb and ⁸⁵Rb isotopes in the same volume can lead to a large extra spin-exchange broadening compared to pure ⁸⁷Rb. This broadening mainly comes from the contribution of the equivalent reduction in the Rb spin-exchange rate. On this basis, an approximate relaxation model is proposed and experimentally demonstrated to be more accurate than that from a previous work. This study also provides a method for determining the properties of alkali-metal vapor cells.

Key words: comagnetometer, naturally abundant Rb, spin-exchange relaxation, spin polarization

中图分类号: (Electric and magnetic moments, polarizabilities)

32.10.Dk

32.10.Fn (Fine and hyperfine structure) 32.80.Xx (Level crossing and optical pumping)

卢妍, 翟跃阳, 张勇, 范文峰, 邢力, 全伟. Spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne self-compensated atomic comagnetometer[J]. 中国物理B, 2020, 29(4): 43204-043204.

Yan Lu(卢妍), Yueyang Zhai(翟跃阳), Yong Zhang(张勇), Wenfeng Fan(范文峰), Li Xing(邢力), Wei Quan(全伟). Spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne self-compensated atomic comagnetometer[J]. Chin. Phys. B, 2020, 29(4): 43204-043204.

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Spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne self-compensated atomic comagnetometer

Spin-exchange relaxation of naturally abundant Rb in a K-Rb-²¹Ne self-compensated atomic comagnetometer

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