High efficient Raman sideband cooling and strong three-body recombination of atoms

doi:10.1088/1674-1056/acec42

中国物理B ›› 2023, Vol. 32 ›› Issue (10): 103701-103701.doi: 10.1088/1674-1056/acec42

High efficient Raman sideband cooling and strong three-body recombination of atoms

Yuqing Li(李玉清)^1,2, Zhennan Liu(刘震南)¹, Yunfei Wang(王云飞)¹, Jizhou Wu(武寄洲)^1,2,†, Wenliang Liu(刘文良)^1,2, Yongming Fu(付永明)¹, Peng Li(李鹏)¹, Jie Ma(马杰)^1,2, Liantuan Xiao(肖连团)^1,2, and Suotang Jia(贾锁堂)^1,2

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

收稿日期:2023-05-28 修回日期:2023-07-22 接受日期:2023-08-01 出版日期:2023-09-21 发布日期:2023-09-22
通讯作者: Jizhou Wu E-mail:wujz@sxu.edu.cn
基金资助:
Project funded by the National Key Research and Development Program of China (Grant No. 2022YFA1404201), the National Natural Science Foundation of China (Grant Nos. 62020106014, 92165106, 62175140, 12074234, and 11974331), and the Applied Basic Research Project of Shanxi Province, China (Grant No. 202203021224001).

High efficient Raman sideband cooling and strong three-body recombination of atoms

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

Received:2023-05-28 Revised:2023-07-22 Accepted:2023-08-01 Online:2023-09-21 Published:2023-09-22
Contact: Jizhou Wu E-mail:wujz@sxu.edu.cn
Supported by:
Project funded by the National Key Research and Development Program of China (Grant No. 2022YFA1404201), the National Natural Science Foundation of China (Grant Nos. 62020106014, 92165106, 62175140, 12074234, and 11974331), and the Applied Basic Research Project of Shanxi Province, China (Grant No. 202203021224001).

摘要/Abstract

摘要： We report a highly efficient three-dimensional degenerated Raman sideband cooling (3D dRSC) that enhances the loading of a magnetically levitated optical dipole trap, and observe the strong atom loss due to the three-body recombination. The 3D dRSC is implemented to obtain 5×10⁷ Cs atoms with the temperature of ～ 480 nK. The cold temperature enables 1.8×10⁷ atoms loaded into a crossed dipole trap with an optimized excessive levitation magnetic gradient. Compared to the loading of atoms from a bare magneto-optical trap or the gray-molasses cooling, there is a significant increase in the number of atoms loaded into the optical dipole trap. We derive for the three-body recombination coefficient of L₃ = 7.73×10^-25 cm⁶/s by analyzing the strong atom loss at a large scattering length of 1418 Bohr radius, and discover the transition from the strong three-body loss to the dominant one-body loss. Our result indicates that the lifetime of atoms in the optical dipole trap is finally decided by the one-body loss after the initial strong three-body loss.

关键词: matter wave, atom cooling methods, ultracold gases

Abstract: We report a highly efficient three-dimensional degenerated Raman sideband cooling (3D dRSC) that enhances the loading of a magnetically levitated optical dipole trap, and observe the strong atom loss due to the three-body recombination. The 3D dRSC is implemented to obtain 5×10⁷ Cs atoms with the temperature of ～ 480 nK. The cold temperature enables 1.8×10⁷ atoms loaded into a crossed dipole trap with an optimized excessive levitation magnetic gradient. Compared to the loading of atoms from a bare magneto-optical trap or the gray-molasses cooling, there is a significant increase in the number of atoms loaded into the optical dipole trap. We derive for the three-body recombination coefficient of L₃ = 7.73×10^-25 cm⁶/s by analyzing the strong atom loss at a large scattering length of 1418 Bohr radius, and discover the transition from the strong three-body loss to the dominant one-body loss. Our result indicates that the lifetime of atoms in the optical dipole trap is finally decided by the one-body loss after the initial strong three-body loss.

Key words: matter wave, atom cooling methods, ultracold gases

中图分类号: (Atom cooling methods)

37.10.De

67.85.-d (Ultracold gases, trapped gases)

Yuqing Li(李玉清), Zhennan Liu(刘震南), Yunfei Wang(王云飞), Jizhou Wu(武寄洲), Wenliang Liu(刘文良), Yongming Fu(付永明), Peng Li(李鹏), Jie Ma(马杰), Liantuan Xiao(肖连团), and Suotang Jia(贾锁堂). High efficient Raman sideband cooling and strong three-body recombination of atoms[J]. 中国物理B, 2023, 32(10): 103701-103701.

参考文献

[1] Bloch I, Dalibard J and Nascimbéne S 2012 Nat. Phys. 8 267
[2] Clark L W, Gaj A, Feng L and Chin C 2017 Nature 551 356
[3] Li J R, Lee J, Huang W J, Burchesky S, Shteynas B, Top F C, Jamison A O and Ketterle W 2017 Nature 543 91
[4] Cooper N R, Dalibard J and Spielman I B 2019 Rev. Mod. Phys. 91 015005
[5] Li Y Q, Zhang J H, Wang Y F, Du H Y, Wu J Z, Liu W L, Mei F, Ma J, Xiao L T and Jia S T 2022 Light. Sci. Appl. 11 13
[6] Wang Y F, Zhang J H, Li Y Q, Wu J Z, Liu W L, Mei F, Hu Y, Xiao L T, Ma J, Chin C and Jia S T 2022 Phys. Rev. Lett. 129 103401
[7] Wang Y F, Du H Y, Li Y Q, Mei F, Hu Y, Xiao L T, Ma J and Jia S T 2023 Light. Sci. Appl. 12 50
[8] Burchianti A, Valtolina G, Seman J A, Pace E, De Pas M, Inguscio M, Zaccanti M and Roati G 2014 Phys. Rev. A 90 043408
[9] Sievers F, Kretzschmar N, Fernandes D R, Suchet D, Rabinovic M, Wu S J, Parker C V, Khaykovich L, Salomon C and Chevy F 2015 Phys. Rev. A 91 023426
[10] Satter C L, Tan S and Dieckmann K 2018 Phys. Rev. A 98 023422
[11] Kim K, Huh S J, Kwon K and Choi J 2019 Phys. Rev. A 99 053604
[12] Colzi G, Durastante G, Fava E, Serafini S, Lamporesi G and Ferrari G 2016 Phys. Rev. A 93 023421
[13] Shi Z L, Li Z L, Wang P J, Meng Z M, Huang L H and Zhang J 2018 Chin. Phys. Lett. 35 123701
[14] Salomon G, Fouché L, Lepoutre S, Aspect A and Bourdel T 2014 Phys. Rev. A 90 033405
[15] Nath D, Easwaran R K, Rajalakshmi G and Unnikrishnan C S 2013 Phys. Rev. A 88 053407
[16] Bruce G D, Haller E, Peaudecerf B, Cotta D A, Andia M, Wu S, Johnson M Y H, Lovett B W and Kuhr S 2017 J. Phys. B 50 095002
[17] Chen H Z, Yao X C, Wu Y P, Liu X P, Wang X Q, Wang Y X, Chen Y A and Pan J W 2016 Phys. Rev. A 94 033408
[18] Rosi S, Burchianti A, Conclave S, Naik D S, Roati G, Fort C and Minardi F 2018 Sci. Rep. 8 1301
[19] Hsiao Y F, Lin Y J and Chen Y C 2018 Phys. Rev. A 98 033419
[20] Kerman A J, Vuletić V, Chin C and Chu S 2000 Phys. Rev. Lett. 84 439
[21] Treutlein P, Chung K Y and Chu S 2001 Phys. Rev. A 63 051401
[22] Weber T, Herbig J, Mark M, Nägerl H and Grimm R 2003 Science 299 232
[23] Kraemer T, Herbig J, Mark M, Weber T, Chin C, Nägerl H and Grimm R 2004 Appl. Phys. B 79 1013
[24] Hung C L, Zhang X B, Gemelke N and Chin C 2008 Phys. Rev. A 78 011604
[25] Wang Y F, Li Y Q, Wu J Z, Liu W L, Hu J Z, Ma J, Xiao L T and Jia S T 2021 Opt. Express 29 13960
[26] Gröbner M, Weinmann P, Kirilov E and Nägerl H 2017 Phys. Rev. A 95 033412
[27] Hu J Z, Urvoy A, Vendeiro Z, Crépel V, Chen W L and Vuletić V 2017 Science 358 1078
[28] Solano P, Duan Y H, Chen Y T, Rudelis A, Chin C and Vuletić V 2019 Phys. Rev. Lett. 123 173401
[29] Grimm R, Weidemüller M and Ovchinnikov Y B 2000 Adv. At. Mol. Opt. Phys. 42 95
[30] Shiddiq M, Ahmed E M, Havey M D and Sukenik C I 2008 Phys. Rev. A 77 045401
[31] Olson A J, Niffenegger R J and Chen Y P 2013 Phys. Rev. A 87 053613
[32] Chin C, Grimm R, Julienne P and Tiesinga E 2010 Rev. Mod. Phys. 82 1225
[33] Fletcher R J, Gaunt A L, Navon N, Smith R P and Hadzibabic Z 2013 Rev. Lett. 111 125303
[34] Makotyn P, Klauss C E, Goldberger D L, Cornell E A and Jin D S 2014 Nat. Phys. 10 116
[35] Eigen C, Glidden J A P, Lopes R, Navon N, Hadzibabic Z and Smith R P 2017 Phys. Rev. Lett. 119 250404
[36] Gao C, Sun M Y, Zhang P and Zhai H 2020 Phys. Rev. Lett. 124 040403
[37] Weber T, Herbig J, Mark M, Nägerl H and Grimm R 2003 Phys. Rev. Lett. 91 123201
[38] Rem B S, Grier A T, Ferrier-Barbut I, Eismann U, Langen T, Navon N, Khaykovich L, Werner F, Petrov D S, Chevy F and Salomon C 2013 Phys. Rev. Lett. 110 163202
[39] Eismann U, Khaykovich L, Laurent S, Ferrier-Barbut I, Rem B S, Grier A T, Delehaye M, Chevy F, Salomon C, Ha L and Chin C 2016 Phys. Rev. X 6 021025
[40] Ketterle W, Durfee, D S and Stamper-Kurn D M 1999 in Proc. Int. School of Physics "Enrico Fermi" p. 67
[41] Jenkina D L, McCarron D J, Koppinger M P, Cho H W, Hopkins S A and Cornish S L 2011 Eur. Phys. J. D 65 11
[42] Steck D A 2003 Cesium D line data
[43] Kraemer T, Mark M, Waldburger P, Danzl J G, Chin C, Engeser B, Lange A D, Pilch K, Jaakkola A, Nägerl H and Grimm R 2006 Nature 440 315

High efficient Raman sideband cooling and strong three-body recombination of atoms

High efficient Raman sideband cooling and strong three-body recombination of atoms

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 5

Metrics

本文评价

推荐阅读 0

[1]	Tie-Fu Zhang(张铁夫), Cheng-Xi Li(李成蹊), and Wu-Ming Liu(刘伍明). Dynamics of bubble-shaped Bose-Einstein condensates on two-dimensional cross-section in micro-gravity environment[J]. 中国物理B, 2023, 32(9): 90501-090501.
[2]	Ziliang Li(李子亮), Zhengyu Gu(顾正宇), Zhenlian Shi(师振莲), Pengjun Wang(王鹏军), and Jing Zhang(张靖). Quantum degenerate Bose-Fermi atomic gas mixture of ²³Na and ⁴⁰K[J]. 中国物理B, 2023, 32(2): 23701-023701.
[3]	Liangwei Wang(王良伟), Kai Wen(文凯), Fangde Liu(刘方德), Yunda Li(李云达), Pengjun Wang(王鹏军), Lianghui Huang(黄良辉), Liangchao Chen(陈良超), Wei Han(韩伟), Zengming Meng(孟增明), and Jing Zhang(张靖). Experimental realization of two-dimensional single-layer ultracold gases of ⁸⁷Rb in an accordion lattice[J]. 中国物理B, 2022, 31(10): 103401-103401.
[4]	Cheng-Dong Mi(米成栋), Khan Sadiq Nawaz, Peng-Jun Wang(王鹏军), Liang-Chao Chen(陈良超), Zeng-Ming Meng(孟增明), Lianghui Huang(黄良辉), and Jing Zhang(张靖). Production of dual species Bose-Einstein condensates of ³⁹K and ⁸⁷Rb[J]. 中国物理B, 2021, 30(6): 63401-063401.
[5]	乐旭广, 刘淑娟, 吴飙, 熊宏伟. Matter wave interference of dilute Bose gases in the critical regime[J]. 中国物理B, 2017, 26(5): 50501-050501.