| 推广的SSH哈密顿及其孤子解 |
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| 引用本文： | 林秋葆,周义昌.推广的SSH哈密顿及其孤子解[J].中山大学学报(自然科学版),1994,33(2):75-79. |
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| 作者姓名： | 林秋葆 周义昌 |
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| 作者单位： | 中山大学物理学系 |
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| 摘 要： | 使用紧束缚近似方法推导出推广的ＳＳＨ哈密顿，比Ｄａｖｙｄｏｖ孤子的哈密顿多了一个表现电子近邻跳跃与晶格振动的耦合项，随后使用数值方法计算非线性方程的孤子解。对一些材料，与Ｄａｖｙｄｏｖ孤子解一致，对另一些材料，则产生不同程度的变形。
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| 关 键 词： | 孤子解，紧束缚近似 |
Generalized SSH Hamiltonian and Its Soliton Solution |
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| Lin Chiubao, Zhou Yichang, Liu Jinming.Generalized SSH Hamiltonian and Its Soliton Solution[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,1994,33(2):75-79. |
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| Authors: | Lin Chiubao Zhou Yichang Liu Jinming |
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| Institution: | Lin Chiubao, Zhou Yichang, Liu Jinming Department of Physics,Zhongshan University,Guangzhou510275 |
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| Abstract: | The generalized SSH Hamiltonian is derived.It is shown that a term arisingfrom the coupling between lattice vibration and electron hopping is missing in theDavydov's Hamiltonian. We obtain the soliton solution of a Hamiltonian including thisterm. The results show that this term have different effect in different metarials. |
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| Keywords: | soliton solution |
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