Optimized Degenerate Bose-Fermi Mixture in Microgravity： DSMC Simulation of Sympathetic Cooling

作     者：LUAN Tian JIA Tao CHEN Xu-Zong MA Zhao-Yuan 

作者机构：School of Electronics Engineering and Computer Science Peking University Beijing 100871 Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2014年第31卷第4期

页      面：41-45页

核心收录：

学科分类：07[理学] 080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the National Fundamental Research Program of China under Grant Nos SQ2010CB511493 and 2011CB921501  and the National Natural Science Foundation of China under Grant Nos 61027016  61078026  10934010 and 91336103 

主　　题：Cooling Optimized direct 

摘      要：Applying the direct simulation Monte Carlo （DSMC） method developed for the cold atom system, we explore the possibility of a high-efflciency 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. fhrthermore, an inefficient pre-cooling process will in fact hamper the creation of Fermi degenerate gases. This suggests the advantages of sympathetic cooling in microgravity.