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

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.

作 者： JIAO Zhi-Yong YU Zhao-Xian YANG Xin-jian   作者單位： Department of Applied Physics, University of Petroleum (East China), Dongying 257061, China  刊 名： 理論物理通訊（英文版）  ISTIC SCI 英文刊名： COMMUNICATIONS IN THEORETICAL PHYSICS  年，卷(期)： 2004 42(8)  分類號(hào)： O4  關(guān)鍵詞： two-component Bose-Einstein condensates   atomic tunneling current   atomic population difference   collapses and revivals  

《Atomic Tunneling Effect in Two-Component Bose-Einstein Condensates with a Coupling Drive.doc》

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