| Effects of localized impurity of trap on characteristics of two Bose-Einstein condensates |
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| 作者姓名： | 程永山 李宏 殷德京 |
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| 作者单位： | Department of Electronic Science and Technology Huazhong University of Science and Technology，Wuhan 430074 Department of Physics，Hubei Normal University，Huangshi 435002，Department of Electronic Science and Technology Huazhong University of Science and Technology，Wuhan 430074 Department of Physics，Hubei Normal University，Huangshi 435002，Department of Physics Hubei Normal University，Huangshi 435002 |
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| 基金项目： | This work was supported by the National High Technology Research Programme of China (No. 2002AA312050) and the Important Program of Education Department of Hubei Province (No. 2002Z00005). |
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| 摘 要： | The characteristics of solitons with a localized impurity in Bose-Einstein condensates (BECs) are investigated with numerical simulations of the Gross-Pitaevskii (GP) equation, the effects of the impurity on BEC solitons are discussed, and the atom population transferring ratios between the two BECs as time goes on are analyzed. It is found that population transfer depends on the impurity strength and the parameters of the system of BECs.
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