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An effective pumping method for increasing atomic utilization in a compact cold atom clock |
| Xin-Chuan Ouyang(欧阳鑫川)1,2, Bo-Wen Yang(杨博文)1,2, Jian-Liao Deng(邓见辽)1, Jin-Yin Wan(万金银)1, Ling Xiao(肖玲)1, Hang-Hang Qi(亓航航)1,2, Qing-Qing Hu(胡青青)3,†, and Hua-Dong Cheng(成华东)1,2,‡ |
1 Key Laboratory of Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Advanced Interdisciplinary Technology Research Center, National Innovation Institute of Defense Technology, Beijing 100010, China |
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Abstract We propose a simple pumping method to increase the effective population of cold atoms in the clock state and investigate the factors which affect the pumping efficiency in cold atom systems. We report the theory and demonstrate the corresponding experiment in an 87Rb integrating sphere cold atom clock. The experimental results show that the population of cold atoms in the Zeeman sublevel |F=2, mF=0> is approximately 1.62 times that of the result using optical pumping alone. This method can also be applied to increase the effective population in any one of the target Zeeman sublevels in other cold atom systems.
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Received: 02 March 2021
Revised: 27 April 2021
Accepted manuscript online: 29 April 2021
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PACS:
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32.80.Xx
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(Level crossing and optical pumping)
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06.30.Ft
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(Time and frequency)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61727821, 61875215, and 11904408). |
Corresponding Authors:
Qing-Qing Hu, Hua-Dong Cheng
E-mail: qqhu@baqis.ac.cn;chenghd@siom.ac.cn
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Cite this article:
Xin-Chuan Ouyang(欧阳鑫川), Bo-Wen Yang(杨博文), Jian-Liao Deng(邓见辽), Jin-Yin Wan(万金银), Ling Xiao(肖玲), Hang-Hang Qi(亓航航), Qing-Qing Hu(胡青青), and Hua-Dong Cheng(成华东) An effective pumping method for increasing atomic utilization in a compact cold atom clock 2021 Chin. Phys. B 30 083202
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[1] Chen Y, Zuo G H, Tian Z Z, Zhang Y C and Zhang T C 2019 Chin. Phys. B 28 117601
[2] Gillot P, Francis O, Landragin A, Dos Santos F P and Merlet S 2014 Metrologia 51 L15
[3] Gustavson T L, Bouyer P and Kasevich M A 1997 Phys. Rev. Lett. 78 2046
[4] Hart M W, Hammond M S, Dunning F B and Walters G K 1989 Phys. Rev. B 39 5488
[5] Lamoreaux S K, Jacobs J P, Heckel B R, Raab F J and Fortson E N 1986 Phys. Rev. Lett. 57 3125
[6] Chou C W, Laurat J, Deng H, Choi K S, De Riedmatten H, Felinto D and Kimble H J 2007 Science 316 1316
[7] Cirac J I, Zoller P, Kimble H J and Mabuchi H 1997 Phys. Rev. Lett. 78 3221
[8] Leibfried D, Blatt R, Monroe C and Wineland D 2003 Rev. Mod. Phys. 75 281
[9] Li M M, Tan X S, Dai K Z, Zhao P, Yu H F and Yu Y 2018 Chin. Phys. B 27 063202
[10] Dreves W, Jansch H, Koch E and Fick D 1983 Phys. Rev. Lett. 50 1759
[11] Boozer A D, Miller R, Northup T E, Boca A and Kimble H J 2007 Phys. Rev. A 76 063401
[12] Avila G, Giordano V, Candelier V, Declercq E, Theobald G and Cerez P 1987 Phys. Rev. A 36 3719
[13] Tremblay P and Jacques C 1990 Phys. Rev. A 41 4989
[14] Di Domenico G, Devenoges L, Dumas C and Thomann P 2010 Phys. Rev. A 82 053417
[15] Bhaskar N D 1993 Phys. Rev. A 47 R4559
[16] Micalizio S, Godone A, Levi F and Calosso C 2009 Phys. Rev. A 80 023419
[17] Liu P, Meng Y, Wan J, Wang X, Wang Y, Xiao L, Cheng H and Liu L 2015 Phys. Rev. A 92 062101
[18] Newbury N R, Myatt C J and Wieman C E 1995 Phys. Rev. A 51 R2680
[19] Micalizio S, Godone A, Levi F and Calosso C 2009 Phys. Rev. A 79 013403
[20] Edmonds A R and Mendlowitz H 1958 Phys. Today 11 34
[21] Meng Y L, Cheng H D, Zheng B C, Wang X C, Xiao L and Liu L 2013 Chin. Phys. Lett. 30 063701
[22] Mcdonald G D 2009 Detecting Atomic Shot Noise On Ultra-cold Atom Clouds (Bachelor) (Canberra: The Australian National University) (in Australia)
[23] Yu M, Xu B, Ouyang X, Wang X, Wan J, Xiao L, Cheng H and Liu L 2019 Chin. J. Lasers 46 0804003
[24] Esnault F X, Rossetto N, Holleville D, Delporte J and Dimarcq N 2011 Adv. Space Res. 47 854 |
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