Monte Carlo Simulation of Cooling Induced by Parametric Resonance
ZHANG Peng-Fei, ZHANG Hai-Chao, XU Xin-Ping, WANG Yu-Zhu
Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800Center for Cold Atom Physics, Chinese Academy of Sciences, Shanghai 201800
Monte Carlo Simulation of Cooling Induced by Parametric Resonance
Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800Center for Cold Atom Physics, Chinese Academy of Sciences, Shanghai 201800
摘要We demonstrate that the parametric resonance in a magnetic quadrupole trap can be exploited to cool atoms by using Bird's method. In our programme the parametric resonance was realized by anisotropically modulating the trap potential. The modulation frequency dependences of temperature and fraction of the trapped atoms are explored. Furthermore, the temperature after the modulation as functions of the modulation amplitude and the mean elastic collision time are also studied. These results are valuable for the experiment of parametric resonance in a quadrupole trap.
Abstract：We demonstrate that the parametric resonance in a magnetic quadrupole trap can be exploited to cool atoms by using Bird's method. In our programme the parametric resonance was realized by anisotropically modulating the trap potential. The modulation frequency dependences of temperature and fraction of the trapped atoms are explored. Furthermore, the temperature after the modulation as functions of the modulation amplitude and the mean elastic collision time are also studied. These results are valuable for the experiment of parametric resonance in a quadrupole trap.
ZHANG Peng-Fei;ZHANG Hai-Chao;XU Xin-Ping;WANG Yu-Zhu. Monte Carlo Simulation of Cooling Induced by Parametric Resonance[J]. 中国物理快报, 2008, 25(1): 89-92.
ZHANG Peng-Fei, ZHANG Hai-Chao, XU Xin-Ping, WANG Yu-Zhu. Monte Carlo Simulation of Cooling Induced by Parametric Resonance. Chin. Phys. Lett., 2008, 25(1): 89-92.
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2008, Vol. 25 
