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

作　　者：崔国栋 孙剑芳 姜伯楠 钱军 王育竹 

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

出　　处：《Chinese Physics B》2013年第9期534-538,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 11104292);the National Basic Research Program of China (Grant No. 2011CB921504)

摘　　要：We derive the coupled nonpolynomial nonlinear Schr6dinger equations for a two-component Bose-Lmstem conaensate 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.We derive the coupled nonpolynomial nonlinear Schr6dinger equations for a two-component Bose-Lmstem conaensate 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 

分 类 号：O431.2[机械工程—光学工程]