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

doi:10.1088/1674-1056/24/4/046701

中国物理B ›› 2015, Vol. 24 ›› Issue (4): 46701-046701.doi: 10.1088/1674-1056/24/4/046701

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

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

李飞^{a c}, 李勇帆^b, 张平柯^a, 艾振宙^a, 吴昌义^a

a Department of Education Science, Hunan First Normal University, Changsha 410205, China;
b Department of Information Science and Engineering, Hunan First Normal University, Changsha 410205, China;
c Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha 410081, China

收稿日期:2014-09-25 修回日期:2014-11-26 出版日期:2015-04-05 发布日期:2015-04-05
基金资助:
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), and the Opening Project of Key Laboratory of Low-dimensional Quantum Structures and Quantum Control (Hunan Normal University), Ministry of Education (Grant No. QSQC1005).

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

Li Fei (李飞)^{a c}, Li Yong-Fan (李勇帆)^b, Zhang Ping-Ke (张平柯)^a, Ai Zhen-Zhou (艾振宙)^a, Wu Chang-Yi (吴昌义)^a

a Department of Education Science, Hunan First Normal University, Changsha 410205, China;
b Department of Information Science and Engineering, Hunan First Normal University, Changsha 410205, China;
c Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha 410081, China

Received:2014-09-25 Revised:2014-11-26 Online:2015-04-05 Published:2015-04-05
Contact: Li Fei E-mail:lifeipaper@163.com
Supported by:
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), and 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/Abstract

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.

关键词: Bose-Einstein condensates, superfluid current, chaos

Abstract:

Key words: Bose-Einstein condensates, superfluid current, chaos

中图分类号: (Other Bose-Einstein condensation phenomena)

67.85.Jk

03.75.Kk (Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow) 05.45.Ac (Low-dimensional chaos)

李飞, 李勇帆, 张平柯, 艾振宙, 吴昌义. A space-dependent atomic superfluid current in Bose-Einstein condensates[J]. 中国物理B, 2015, 24(4): 46701-046701.

Li Fei (李飞), Li Yong-Fan (李勇帆), Zhang Ping-Ke (张平柯), Ai Zhen-Zhou (艾振宙), Wu Chang-Yi (吴昌义). A space-dependent atomic superfluid current in Bose-Einstein condensates[J]. Chin. Phys. B, 2015, 24(4): 46701-046701.

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

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

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