| Nonlinear Wave in a Disc-Shaped Bose-Einstein Condensate |
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| 作者姓名： | 段文山 陈建红 杨红娟 石玉仁 王红艳 |
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| 作者单位： | Department of Physics, Northwest Normal University, Lanzhou 730070 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10575082 and 10247008. |
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| 摘 要： | We discuss the possible nonlinear waves of atomic matter wave in a Bose-Einstein condensate. One and two of two-dimensional （2D） dark solitons in the Bose-Einstein condensed system are investigated. A rich dynamics is studied for the interactions between two solitons. The interaction profiles of two solitons are greatly different if the angle between them are different. If the angle is small enough, the maximum amplitude during the interaction between two solitons is even less than that of a single soliton. However, if the angle is large enough, the maximum amplitude of two solitons can gradually attend to the sum of two soliton amplitudes.
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| 关 键 词： | 非线性波 玻色-爱因斯坦冷凝物 交互作用 极大振幅 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-04-20 |
Nonlinear Wave in a Disc-Shaped Bose--Einstein Condensate |
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| DUAN Wen-Shan,CHEN Jian-Hong,YANG Hong-Juan,SHI Yu-Ren,WANG Hong-Yan.Nonlinear Wave in a Disc-Shaped Bose-Einstein Condensate[J].Chinese Physics Letters,2006,23(8):2000-2003. |
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| Authors: | DUAN Wen-Shan CHEN Jian-Hong YANG Hong-Juan SHI Yu-Ren WANG Hong-Yan |
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| Affiliation: | Department of Physics, Northwest Normal University, Lanzhou 730070 |
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| Abstract: | We discuss the possible nonlinear waves of atomic matter wave in a Bose--Einstein condensate. One and two of two-dimensional (2D) dark solitons in the Bose--Einstein condensed system are investigated. A rich dynamics is studied for the interactions between two solitons. The interaction profiles of two solitons are greatly different if the angle between them are different. If the angle is small enough, the maximum amplitude during the interaction between two solitons is even less than that of a single soliton. However, if the angle is large enough, the maximum amplitude of two solitons can gradually attend to the sum of two soliton amplitudes. |
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| Keywords: | 03 75 -b 42 81 Dp 11 10 Lm 42 50 Md |
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