中国物理B ›› 2011, Vol. 20 ›› Issue (8): 80308-080308.doi: 10.1088/1674-1056/20/8/080308
张爱霞1, 薛具奎1, 王建军2
Wang Jian-Jun(王建军)a)b), Zhang Ai-Xia(张爱霞)a), and Xue Ju-Kui(薛具奎)a)†
摘要: The impurity-induced localization of two-component Bose—Einstein condensates loaded into deep one-dimensional optical lattices is studied both analytically and numerically. It is shown that, the analytical criteria for self-trapping and moving soliton/breather of the primary-component condensate are modified significantly by an admixture of an impurity component (the second component). The realization of the self-trapped state and the moving soliton/breather states of the primary-component becomes more easy with the minor admixture of the impurity-component, even if the two components are partly overlapped.
中图分类号: (Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)