Please wait a minute...
Chin. Phys. B, 2012, Vol. 21(11): 113402    DOI: 10.1088/1674-1056/21/11/113402
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Investigation of ultracold atoms and molecules in a dark magneto-optical trap

Wang Li-Rong, Ji Zhong-Hua, Yuan Jin-Peng, Yang Yan, Zhao Yan-Ting, Ma Jie, Xiao Lian-Tuan, Jia Suo-Tang
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China
Abstract  In this paper, ultracold atoms and molecules in a dark magneto-optical trap (MOT) are studied via depumping the cesium cold atoms into the dark hyperfine ground state. The collision rate is reduced to 0.45 s-1 and the density of the atoms is increased to 5.6× 1011 cm-3 when the fractional population of the atoms in the bright hyperfine ground state is as low as 0.15. The vibrational spectra of the ultracold cesium molecules are also studied in a standard MOT and in a dark MOT separately. The experimental results are analyzed by using the perturbative quantum approach.
Keywords:  cold atom      dark magneto-optical trap      photoassociation  
Received:  20 March 2012      Revised:  23 May 2012      Published:  01 October 2012
PACS:  34.50.Cx (Elastic; ultracold collisions)  
  37.10.Gh (Atom traps and guides)  
  33.15.Mt (Rotation, vibration, and vibration-rotation constants)  
  33.80.-b (Photon interactions with molecules)  
Fund: Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the International Science & Technology Cooperation Program of China (Grant No. 2011DFA12490), the National Natural Science Foundation of China (Grant Nos. 10934004, 60978001, 60978018, 60808009, 61078001, and 61008012), and the Natural Science Foundation of Shanxi Province, China (Grant No. 2011011004).
Corresponding Authors:  Wang Li-Rong     E-mail:  wlr@sxu.edu.cn

Cite this article: 

Wang Li-Rong, Ji Zhong-Hua, Yuan Jin-Peng, Yang Yan, Zhao Yan-Ting, Ma Jie, Xiao Lian-Tuan, Jia Suo-Tang Investigation of ultracold atoms and molecules in a dark magneto-optical trap 2012 Chin. Phys. B 21 113402

[1] Jiang K J, Li K, Wang J and Zhan M S 2006 Acta Phys. Sin. 55 125 (in Chinese)
[2] Qiu Y, He J, Wang Y H, Wang J, Zhang T C and Wang J M 2008 Acta Phys. Sin. 57 6227 (in Chinese)
[3] Wu J Z, Jie M, Zhang Y C, Li Y Q, Wang L R, Zhao Y T, Chen G, Xiao L T and Jia S T 2011 Phys. Chem. Chem. Phys. 13 18921
[4] Zhang H S, Ji Z H, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T and Jia S T 2011 Chin. Phys. B 20 123702
[5] Ke M, Yan B, Cheng F and Wang Y Z 2009 Chin. Phys. B 18 4823
[6] Hudson J J, Tarbutt M R and Hinds E A2002 Phys. Rev. Lett. 88 067901
[7] Rabl P, DeMille D, Doyle J M, Lukin M D, Schoelkopf R J and Zoller P 2006 Phys. Rev. Lett. 97 033003
[8] Burovski E, Kozik E, Prokof'ev N, Svistunov B and Troyer M 2008 Phys. Rev. Lett. 101 090402
[9] Ketterle W, Davis K B, Joffe M A, Martin A and Partchard D 1993 Phys. Rev. Lett. 70 2253
[10] Anderson M H, Petrich W, Ensher J R and Cornell E A 1994 Phys. Rev. A 50 R3597
[11] Permyakova O I, Yakovlev A V and Chapovsky P L 2008 Quantum Electronics 38 884
[12] Singh S, Tiwari V B and Rawat H S 2010 Journal of Experimental and Theoretical Physics 111 371
[13] Wang L R, Ma J, Zhang L J Xiao L T and Jia S T 2006 Acta Phys. Sin. 15 1268 (in Chinese)
[14] JI Z H, Zhang H S, Wu J Z, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T and Jia S T 2010 Chin. Phys. Lett. 28 08371
[15] Marcassa L, Bagnato V, Wang Y, Tsao C and Weiner J 1993 Phys. Rev. A 47 R4563
[16] Monroe C, Swann W, Robinson H and Wieman C 1990 Phys. Rev. Lett. 65 1571
[17] Lignier H, Fioretti A, Horchani R, Drag C, Bouloufa N, Alliegrini M, Dulieu O, Pruvost L, Pillet P and Comparat D 2011 Phys. Chem. Chem. Phys. 13 18910
[18] Pillet P, Crubellier A, Bleton A, Dulieu O, Nosbaum P and Masnou-Seeuws F 1997 J. Phys. B: At. Mol. Opt. Phys. 30 2801
[1] Improve the performance of interferometer with ultra-cold atoms
Xiangyu Dong(董翔宇), Shengjie Jin(金圣杰), Hongmian Shui(税鸿冕), Peng Peng(彭鹏), and Xiaoji Zhou(周小计). Chin. Phys. B, 2021, 30(1): 014210.
[2] Simulation of anyons by cold atoms with induced electric dipole moment
Jian Jing(荆坚), Yao-Yao Ma(马瑶瑶), Qiu-Yue Zhang(张秋月), Qing Wang(王青), Shi-Hai Dong(董世海). Chin. Phys. B, 2020, 29(8): 080303.
[3] Enhancement of the photoassociation of ultracold atoms via a non-resonant magnetic field
Ji-Zhou Wu(武寄洲), Yu-Qing Li(李玉清), Wen-Liang Liu(刘文良), Peng Li(李鹏), Xiao-Feng Wang(王晓锋), Peng Chen(陈鹏), Jie Ma(马杰), Lian-Tuan Xiao(肖连团), Suo-Tang Jia(贾锁堂). Chin. Phys. B, 2020, 29(8): 083303.
[4] Generating two-dimensional quantum gases with high stability
Bo Xiao(肖波), Xuan-Kai Wang(王宣恺), Yong-Guang Zheng(郑永光), Yu-Meng Yang(杨雨萌), Wei-Yong Zhang(章维勇), Guo-Xian Su(苏国贤), Meng-Da Li(李梦达), Xiao Jiang(江晓), Zhen-Sheng Yuan(苑震生). Chin. Phys. B, 2020, 29(7): 076701.
[5] Landau-like quantized levels of neutral atom induced by a dark-soliton shaped electric field
Yueming Wang(王月明), Zhen Jin(靳祯). Chin. Phys. B, 2020, 29(1): 010303.
[6] Development of the integrated integrating sphere cold atom clock
Ming-Yuan Yu(于明圆), Yan-Ling Meng(孟艳玲), Mei-Feng Ye(叶美凤), Xin Wang(王鑫), Xin-Chuan Ouyang(欧阳鑫川), Jin-Yin Wan(万金银), Ling Xiao(肖玲), Hua-Dong Cheng(成华东), Liang Liu(刘亮). Chin. Phys. B, 2019, 28(7): 070602.
[7] Phase-related noise characteristics of 780 nm band single-frequency lasers used in the cold atomic clock
Xi Zhang(张茜), Fei Yang(杨飞), Zi-Tong Feng(冯子桐), Jie-Jun Zhao(赵洁珺), Fang Wei(魏芳), Hai-Wen Cai(蔡海文), Rong-Hui Qu(瞿荣辉). Chin. Phys. B, 2019, 28(7): 074209.
[8] Effect of external magnetic field on the shift of resonant frequency in photoassociation of ultracold Cs atoms
Pengwei Li(李鹏伟), Yuqing Li(李玉清), Guosheng Feng(冯国胜), Jizhou Wu(武寄洲), Jie Ma(马杰), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂). Chin. Phys. B, 2019, 28(1): 013702.
[9] Corrections to atomic ground state energy due to interaction between atomic electric quadrupole and optical field
Jie Hu(胡洁), Yu Chen(陈宇), Yi-Xiu Bai(白伊秀), Pei-Song He(何培松), Qing Sun(孙青), An-Chun Ji(纪安春). Chin. Phys. B, 2018, 27(4): 043202.
[10] Calibration of the superconducting gravimeter based on a cold atom absolute gravimeter at NIM
Qiyu Wang(王启宇), Jinyang Feng(冯金扬), Shaokai Wang(王少凯), Wei Zhuang(庄伟), Yang Zhao(赵阳), Lishuang Mou(牟丽爽), Shuqing Wu(吴书清). Chin. Phys. B, 2018, 27(12): 123701.
[11] Photoassociation spectra of ultracold 85Rb2 molecule in 0u+ long range state near the 5S1/2+5P1/2 asymptote
Guodong Zhao(赵国栋), Dianqiang Su(苏殿强), Zhonghua Ji(姬中华), Tengfei Meng(孟腾飞), Yanting Zhao(赵延霆), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂). Chin. Phys. B, 2017, 26(8): 083301.
[12] Matter wave interference of dilute Bose gases in the critical regime
Xuguang Yue(乐旭广), Shujuan Liu(刘淑娟), Biao Wu(吴飙), Hongwei Xiong(熊宏伟). Chin. Phys. B, 2017, 26(5): 050501.
[13] The effect of field modulation on the vibrational population of the photoassociated NaK and its dynamics
Yu Wang(王玉), Da-Guang Yue(岳大光), Xu-Cong Zhou(周旭聪), Ya-Hui Guo(郭雅慧), Qing-Tian Meng(孟庆田). Chin. Phys. B, 2017, 26(4): 043202.
[14] Enhancement of signal-to-noise ratio of ultracold polar NaCs molecular spectra by phase locking detection
Wenhao Wang(王文浩), Wenliang Liu(刘文良), Jizhou Wu(武寄洲), Yuqing Li(李玉清), Xiaofeng Wang(王晓锋), Yanyan Liu(刘艳艳), Jie Ma(马杰), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂). Chin. Phys. B, 2017, 26(12): 123701.
[15] Highly sensitive photoassociation spectroscopy of ultracold 23Na133Cs molecular long-range states below the 3S1/2+6P3/2 limit
Yanyan Liu(刘艳艳), Jizhou Wu(武寄洲), Wenliang Liu(刘文良), Xiaofeng Wang(王晓锋), Wenhao Wang(王文浩), Jie Ma(马杰), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂). Chin. Phys. B, 2017, 26(12): 123702.
No Suggested Reading articles found!