| 具有局部畸变的常规势阱中玻色-爱因斯坦凝聚孤子的演化特性 |
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| 引用本文： | 程永山,龚荣洲,李宏. 具有局部畸变的常规势阱中玻色-爱因斯坦凝聚孤子的演化特性[J]. 光学与光电技术, 2005, 3(4): 5-7,15 |
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| 作者姓名： | 程永山 龚荣洲 李宏 |
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| 作者单位： | 华中科技大学电子科学与技术系,武汉,430074;华中科技大学光电子工程系,武汉,430074 |
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| 基金项目： | 湖北省教育厅科技资助项目（B20052202）;湖北省教育厅重大资助项目（2002Z00005） |
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| 摘 要： | 运用数值模拟方法解Gross—Pitaevskii方程，研究了具有局部畸变（impurity）的常规势阱中玻色-爱因斯坦凝聚（BEC）孤子的演化特性，发现势阱的局部畸变对BEC孤子随时间演化的特性有重要影响，并且其影响与畸变的强度、势阱的幅度和势阱的类型有关。
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| 关 键 词： | 玻色-爱因斯坦凝聚 非线性薛定谔方程 BEC孤子 畸变 |
| 文章编号： | 1672-3392（2005）04-0005-03 |
| 收稿时间： | 2005-03-24 |
| 修稿时间： | 2005-05-28 |
Characteristics of Bose-Einstein Condensate Soliton With a Localized Impurity in Various Conventional Traps |
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| CHENG Yong-shan,GONG Rong-zhou,LI Hong. Characteristics of Bose-Einstein Condensate Soliton With a Localized Impurity in Various Conventional Traps[J]. optics&optoelectronic technology, 2005, 3(4): 5-7,15 |
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| Authors: | CHENG Yong-shan GONG Rong-zhou LI Hong |
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| Abstract: | The evolution of Bose-Einstein condensate soliton with a localized impurity is investigated by the numerical simulations of the Gross-Pitaevskii (GP) equation. It is found that the impurity has very important effect on the characteristics of the BEC solution that varying with time. The effect depends on the impurity strength, the magnitude and trap and the sort of conventional trap. |
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| Keywords: | Bose-Einstein condensation non-linear Schrodinger equations BEC soliton impurity |
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