Chinese Optics Letters, 2010, 8 (4): 351, Published Online: Apr. 20, 2010  

Evaporative cooling rubidium atoms with microwave radiation Download: 642次

Author Affiliations
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
Abstract
We report the experimental achievement of <sup>87</sup>Rb Bose-Einstein condensation in a magnetic trap with microwave and radio frequency (RF) induced evaporation. Evaporative cooling is realized by using 6.8 GHz microwave radiation driving the <sup>87</sup>Rb atoms to transit from the ground-state hyperfine state |F = 2,mF =2> to |F = 1,mF = 1>. Compared with RF-induced evaporation, <sup>87</sup>Rb atoms are hardly to achieve pure condensate by microwave evaporation cooling due to the effect of atoms in the |F = 1,mF = 1> state being pumped back into the trapping |F = 2,mF = 1> state.

Dezhi Xiong, Pengjun Wang, Haixia Chen, Jing Zhang. Evaporative cooling rubidium atoms with microwave radiation[J]. Chinese Optics Letters, 2010, 8(4): 351.

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