A space-dependent atomic superfluid current in Bose–Einstein condensates  

作　　者：李飞 李勇帆 张平柯 艾振宙 吴昌义 

机构地区：[1]Department of Education Science, Hunan First Normal University [2]Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education,Hunan Normal University [3]Department of Information Science and Engineering, Hunan First Normal University

出　　处：《Chinese Physics B》2015年第4期343-348,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11204076 and 11147011);the Scientific Research Fund of Hunan First Normal University(Grant No.XYS13N16);the Opening Project of Key Laboratory of Low-dimensional Quantum Structures and Quantum Control(Hunan Normal University),Ministry of Education(Grant No.QSQC1005)

摘　　要：A space-dependent atomic superfluid current with an explicit analytical expression and its role in Bose-Einstein condensates are studied. The factors determining the intensity and oscillating amplitude of the space-dependent atomic superfluid current are explored in detail. Research findings reveal that the intensity of the current can be regulated by setting an appropriate configuration of the trap and its oscillating amplitude can be adjusted via Feshbach resonance. It is numerically demonstrated that the space-dependent atomic superfluid current can exert great influence on the spatial distribution of condensed atoms, and even force condensed atoms into very complex distributional states with spatial chaos.A space-dependent atomic superfluid current with an explicit analytical expression and its role in Bose-Einstein condensates are studied. The factors determining the intensity and oscillating amplitude of the space-dependent atomic superfluid current are explored in detail. Research findings reveal that the intensity of the current can be regulated by setting an appropriate configuration of the trap and its oscillating amplitude can be adjusted via Feshbach resonance. It is numerically demonstrated that the space-dependent atomic superfluid current can exert great influence on the spatial distribution of condensed atoms, and even force condensed atoms into very complex distributional states with spatial chaos.

关 键 词：Bose-Einstein condensates superfluid current CHAOS 

分 类 号：O562[理学—原子与分子物理]