| 势阱的局部畸变对多个波色-爱因斯坦凝聚(BEC)孤子演化及相互作用特性的影响 |
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| 引用本文： | 程永山 李宏 龚荣洲. 势阱的局部畸变对多个波色-爱因斯坦凝聚(BEC)孤子演化及相互作用特性的影响[J]. 激光杂志, 2005, 26(6): 70-72 |
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| 作者姓名： | 程永山 李宏 龚荣洲 |
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| 作者单位： | 华中科技大学电子科学与技术系,湖北,武汉,430074;湖北师范学院物理系,湖北,黄石,435002;湖北师范学院物理系,湖北,黄石,435002;华中科技大学电子科学与技术系,湖北,武汉,430074 |
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| 基金项目： | 基金项目：本论文受湖北省优秀中青年科技创新团队,湖北省教育厅科技项目（N0.B20052202）和湖北省教育厅重大项目（N0.2002200005）资助. |
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| 摘 要： | 本文运用数值模拟方法解耦合薛定谔方程，研究了常规势阱中的局部畸变对多个玻色-爱因斯坦凝聚（BEC）孤子的演化及相互作用特性的影响，发现势阱的局部畸变对BEC孤子的演化及相互作用的影依赖于畸变的强度和畸变的性质，与常规势阱的幅度、BEC孤子系统的参数及初始条件有密切的关系。
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| 关 键 词： | 玻色-爱因斯坦凝聚 耦合非线性薛定谔方程 畸变 孤子 |
| 文章编号： | 0253-2743(2005)06-0070-03 |
| 收稿时间： | 2005-03-05 |
| 修稿时间： | 2005-03-05 |
Effects of the localized impurity on a trap on characteristics of evolution and interaction of a few bose - einstein condensate solitons |
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| CHENG Yong - shan, LI Hong, GONG Rong - zhou. Effects of the localized impurity on a trap on characteristics of evolution and interaction of a few bose - einstein condensate solitons[J]. Laser Journal, 2005, 26(6): 70-72 |
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| Authors: | CHENG Yong - shan LI Hong GONG Rong - zhou |
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| Affiliation: | 1. Department of Electronic Science and Technology, nuazhong University of Science and Technology, Wuhan 430074, China; 2. Department of Physics, Hubei Normal University, Huangshi 435002, China |
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| Abstract: | The effects of the localized impurity in a conventional potential on the characteristics of the evolution and interaction of a few Bose-Einstein Con-densate(BEC)solitons are investigated by direct numerical simulations of the coupling Nonlinear Schrodinger equations.It is found that such effects depend on the strength and features of the impurity,and are related to the amplitude of the trapping potential,the parameters of the BEC soliton system and the initial condition. |
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| Keywords: | Bose- Einstein condensates coupling Nonlinear Schro dingcr equations impurity solitons |
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