| Boundary-Dependent Chaotic Regions for a Bose-Einstein Condensate Interacting with Laser Field |
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| 作者姓名： | 朱钱泉 海文华 邓海明 |
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| 作者单位： | Department of Physics, Hunan Normal University, Changsha 410081 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10575034, and the Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics of China under Grant No T152504. |
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| 摘 要： | Spatial chaos of a Bose Einstein condensate perturbed by a weak laser standing wave and a weak laser δ pulse is studied. By using the perturbed chaotic solution we investigate the new type of Melnikov chaotic regions, which depend on an integration constant co determined by the boundary conditions. It is shown that when the │co│ values are small, the chaotic region corresponds to small values of laser wave vector k, and the chaotic region for the larger h values is related to the large │co│ values. The result is confirmed numerically by finding the chaotic and regular orbits on the Poincarg section for the two different parameter regions. Thus, for a fixed co the adjustment of k from a small value to large value can transform the chaotic region into the regular one or on the contrary, which suggests a feasible method for eliminating or generating Melnikov chaos.
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| 关 键 词： | 玻色-爱因斯坦冷凝物 激光 相互作用 声学 |
| 收稿时间： | 2007-04-24 |
Boundary-Dependent Chaotic Regions for a Bose--Einstein Condensate Interacting with Laser Field |
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| ZHU Qian-Quan,HAI Wen-Hua,DENG Hai-Ming.Boundary-Dependent Chaotic Regions for a Bose-Einstein Condensate Interacting with Laser Field[J].Chinese Physics Letters,2007,24(11):3077-3080. |
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| Authors: | ZHU Qian-Quan HAI Wen-Hua DENG Hai-Ming |
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| Institution: | Department of Physics, Hunan Normal University, Changsha 410081 |
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| Abstract: | |
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| Keywords: | 05 45 Gg 03 65 Ge 03 75 Kk 05 45 Ac |
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