Atomic Tunneling Effect in Two-Component Bose-Einstein Condensates with a Coupling Drive

作     者：JIAOZhi-Yong YUZhao-Xian YANGXin-Jian 

作者机构：DepartmentofAppliedPhysicsUniversityofPetroleum(EastChina)Dongying257061China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2004年第42卷第2X期

页      面：229-234页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：山东省自然科学基金 

主　　题：原子隧道效应 二分量玻色-爱因斯坦凝聚 耦合驱动 相干态 原子数差异 原子物理学 

摘      要：In this paper, we have studied the atomic population difference and the atomic tunneling current of twocomponent Bose-Einstein condensates with a coupling drive. It is found that when the two-component Bose-Einstein condensates are initially in the coherent states, the atomic population difference may exhibit the step structure, in which the numbers of the step increase with the decrease of the Rabi frequency and with the increment of the initial phase difference. The atomic population difference may exhibit collapses, and revivals, in which their periods are affected dramatically by the Rabi frequency and the initial phase difference. The atomic tunneling current may exhibit damping oscillation behaviors, and exist the step structure for the time range of 10-10 ～ 10-9 second.