中国物理B ›› 2013, Vol. 22 ›› Issue (9): 96701-096701.doi: 10.1088/1674-1056/22/9/096701

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

Effects of transverse trapping on the ground state of a cigar-shaped two-component Bose–Einstein condensate

崔国栋a b, 孙剑芳a b, 姜伯楠a b, 钱军a, 王育竹a   

  1. a Key Laboratory for Quantum Optics, Center for Cold Atoms, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2013-02-23 修回日期:2013-04-03 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11104292) and the National Basic Research Program of China (Grant No. 2011CB921504).

Effects of transverse trapping on the ground state of a cigar-shaped two-component Bose–Einstein condensate

Cui Guo-Dong (崔国栋)a b, Sun Jian-Fang (孙剑芳)a b, Jiang Bo-Nan (姜伯楠)a b, Qian Jun (钱军)a, Wang Yu-Zhu (王育竹)a   

  1. a Key Laboratory for Quantum Optics, Center for Cold Atoms, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-02-23 Revised:2013-04-03 Online:2013-07-26 Published:2013-07-26
  • Contact: Qian Jun, Wang Yu-Zhu E-mail:jqian@siom.ac.cn; yzwang@mail.shcnc.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11104292) and the National Basic Research Program of China (Grant No. 2011CB921504).

摘要: We derive the coupled nonpolynomial nonlinear Schrödinger equations for a two-component Bose-Einstein condensate in a quasi-one-dimension geometry and investigate the effects of a tightly transverse trapping on the ground state and the miscibility-immiscibility threshold. We find that the density profile of the matter wavepacket is remarkably dependent on the transverse width and the effective one-dimension nonlinear coupling strengths in miscible and immiscible regimes.

关键词: Boson mixtures, trapped gases, static properties of condensates, transverse trapping

Abstract: We derive the coupled nonpolynomial nonlinear Schrödinger equations for a two-component Bose-Einstein condensate in a quasi-one-dimension geometry and investigate the effects of a tightly transverse trapping on the ground state and the miscibility-immiscibility threshold. We find that the density profile of the matter wavepacket is remarkably dependent on the transverse width and the effective one-dimension nonlinear coupling strengths in miscible and immiscible regimes.

Key words: Boson mixtures, trapped gases, static properties of condensates, transverse trapping

中图分类号:  (Boson mixtures)

  • 67.60.Bc
67.85.-d (Ultracold gases, trapped gases) 67.85.Bc (Static properties of condensates)