Chin. Phys. Lett.  2014, Vol. 31 Issue (04): 043401    DOI: 10.1088/0256-307X/31/4/043401
ATOMIC AND MOLECULAR PHYSICS |
Optimized Degenerate Bose–Fermi Mixture in Microgravity: DSMC Simulation of Sympathetic Cooling
LUAN Tian1, JIA Tao1, CHEN Xu-Zong1**, MA Zhao-Yuan2**
1School of Electronics Engineering and Computer Science, Peking University, Beijing 100871
2Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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LUAN Tian, JIA Tao, CHEN Xu-Zong et al  2014 Chin. Phys. Lett. 31 043401
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Abstract Applying the direct simulation Monte Carlo (DSMC) method developed for the cold atom system, we explore the possibility of a high-efficiency sympathetic cooling process between 87Rb and 40K without gravitational force in an optical trap. The relation between the pre-cooling of Bosons and the sympathetic cooling efficiency is also studied. We find that the absence of gravitational force is beneficial to the process of sympathetic cooling. Furthermore, an inefficient pre-cooling process will in fact hamper the creation of Fermi degenerate gases. This suggests the advantages of sympathetic cooling in microgravity.
Received: 19 November 2013      Published: 25 March 2014
PACS:  34.50.-s (Scattering of atoms and molecules)  
  03.75.Ss (Degenerate Fermi gases)  
  05.30.Fk (Fermion systems and electron gas)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/31/4/043401       OR      https://cpl.iphy.ac.cn/Y2014/V31/I04/043401
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LUAN Tian
JIA Tao
CHEN Xu-Zong
MA Zhao-Yuan
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