Study of dynamical behaviour and fermionization of a bosonic gas in funnel potential  

作　　者：许广元 严蠡 王永俊 刘先锋 韩玖荣 王育竹 

机构地区：[1]Department of Physics, Yangzhou University [2]Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics and Center for Cold Atom Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2008年第11期4158-4162,共5页中国物理B（英文版）

基　　金：Project supported by National Natural Science Foundation of China (Grant No 10647144);Doctoral Special Fund of Yangzhou University of China (Grant No GK0513102);Open Fund of State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (Grant No T152613)

摘　　要：This paper presents a funnel external potential model to investigate dynamic properties of ultracold Bose gas. By using variational method, we obtain the ground-state energy and density properties of ultracold Bose atoms. The results show that the ultracold Bose gas confined in a funnel potential experiences the transition from three-dimensional regime to quasi-one-dimensional regime in a small aspect ratio, and undergoes fermionization process as the aspect ratio increases.This paper presents a funnel external potential model to investigate dynamic properties of ultracold Bose gas. By using variational method, we obtain the ground-state energy and density properties of ultracold Bose atoms. The results show that the ultracold Bose gas confined in a funnel potential experiences the transition from three-dimensional regime to quasi-one-dimensional regime in a small aspect ratio, and undergoes fermionization process as the aspect ratio increases.

关 键 词：Bose gas fermionization DYNAMICS 

分 类 号：O562[理学—原子与分子物理]