一维光晶格中玻色-爱因斯坦凝聚的粒子数分布  

Density Distribution of Bose-Einstein Condensates in a One-Dimensional Optical Lattice

作　　者：赵建刚[1] 周玉欣[1] 闫丽华[1] 

机构地区：[1]聊城大学物理科学与信息工程学院,山东聊城252059

出　　处：《河北科技师范学院学报》2008年第3期23-25,29,共4页Journal of Hebei Normal University of Science & Technology

基　　金：山东省自然科学基金资助项目(项目编号:Q2007A01)

摘　　要：对捕陷在三维轴对称谐振势阱叠加一维光晶格的组合势中的玻色凝聚气体,基于平均场G ross-P itae-vsk ii方程理论,并运用G-P能量泛函和变分方法,得出了非线性薛定谔方程的一维形式,运用数值计算的方法,研究了组合势中子凝聚体的粒子数分布与光晶格深度之间的关系,同时分析了磁势阱对子凝聚体粒子数分布的影响。This paper studied a one-dimensional nonlinear Schrodinger equation and described a Bose-Einstein condensation with G-P function and variation in a three-dimensional axisymmetrical harmonic trap and a one-dimensional optical lattice. The connection of density distribution of Bose-Einstein condensation and the depth of optical lattice was investigated with numerical method. The influence of magnetic trap on density distribution of Bose-Einstein condensates was also analyzed in this paper.

关 键 词：玻色-爱因斯坦凝聚 光晶格 能量泛函 谐振势阱 

分 类 号：O431[机械工程—光学工程]