| 雪茄型势阱对两个玻色-爱因斯坦凝聚孤子的交换和自陷特性的影响 |
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| 引用本文： | 程永山,李宏,龚荣洲. 雪茄型势阱对两个玻色-爱因斯坦凝聚孤子的交换和自陷特性的影响[J]. 量子电子学报, 2005, 22(6): 879-883 |
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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： | 湖北省教育厅科技攻关项目，湖北省教育厅科研项目 |
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| 摘 要： | 运用变分法研究了雪茄形的调谐势阱中两个玻色-爱因斯坦凝聚(BEC)孤子间的交换和自陷特性,运用常规的线性稳定分析法讨论了非线性薛定谔方程同相和反相定态解的稳定性.结果指出,雪茄形势阱对BEC系统的演化、孤子间粒子数的迁移率有明显影响,改变了两个BEC孤子间的交换与自陷特性.
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| 关 键 词： | 量子光学 玻色-爱因斯坦凝聚 孤子 雪茄形势阱 交换 自陷 |
| 文章编号： | 1007-5461(2005)06-0879-05 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 2005-04-25 |
Effects of cigar-shaped traps on switching and self-trapping of two Bose-Einstein condensate solitons |
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| CHENG Yong-shan,LI Hong,GONG Rong-zhou. Effects of cigar-shaped traps on switching and self-trapping of two Bose-Einstein condensate solitons[J]. Chinese Journal of Quantum Electronics, 2005, 22(6): 879-883 |
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| Authors: | CHENG Yong-shan LI Hong GONG Rong-zhou |
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| Abstract: | The characteristics of switching and self-trapping of two Bose-Einstein condensate (BEC) solitons trapped in the cigar-shaped harmonic traps are investigated by the variational approach. The effects of the cigar-shaped traps on the in-phase and the out-of phase solutions of the XLSE in the stationary states are discussed by performing a standard linear stability analysis. It is shown that the cigar-shaped traps affect the evolution of the BEC shift population transferring ratio, and change the characteristics of switching and self-trapping of two BEC solitons. |
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| Keywords: | quantum optics Bose-Einstein coudensate soliton cigar-shaped trap switching self-trapping |
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