| One-Dimensional Two-Component Bosons with Attractive Interaction |
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| 引用本文： | 张秋兰. One-Dimensional Two-Component Bosons with Attractive Interaction[J]. 中国物理快报, 2007, 24(12): 3300-3303 |
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| 作者姓名： | 张秋兰 |
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| 作者单位： | Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10674117. The author thanks S. J. Gu and Y. Q. Li for useful discussions. |
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| 摘 要： | The Bethe-ansatz method is used to solve one-dimensional two-component bosons with a δ-function potential considering the negative coupling constant part. With the string hypothesis of Minoru Takahashi, the features of the ground state and low-lying excited states of this model are discussed explicitly by analytical and numerical methods. Especially for a N = 2 system, the two bosons being pairs is obvious, and the ground state which is independent of the coupling constant should be ferromagnetic.
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| 关 键 词： | 玻色子 吸引 交互作用 激励状态 |
| 收稿时间： | 2007-07-10 |
One-Dimensional Two-Component Bosons with Attractive Interaction |
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| ZHANG Qiu-Lan. One-Dimensional Two-Component Bosons with Attractive Interaction[J]. Chinese Physics Letters, 2007, 24(12): 3300-3303 |
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| Authors: | ZHANG Qiu-Lan |
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| Affiliation: | Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027 |
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| Abstract: | |
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| Keywords: | 03.65.-w 72.15.Nj 03.65.Ge |
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