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题名: Bound state in a one-dimensional quantum sine-Gordon model
作者: Yuan, QS ;  Chen, YG ;  Chen, H ;  Zhang, YM
刊名: PHYSICAL REVIEW B
出版日期: 1998
卷号: 57, 期号:3, 页码:1324-1327
关键词: HALDANE-GAP ;  IMPURITY ;  SPECTRUM
学科分类: Physics
通讯作者: Yuan, QS , Tongji Univ, Pohl Inst Solid State Phys, Shanghai 200092, Peoples R China.
部门归属: Tongji Univ, Pohl Inst Solid State Phys, Shanghai 200092, Peoples R China; Tongji Univ, Pohl Inst Solid State Phys, Shanghai 200092, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The impurity problem ina one-dimensional quantum sine-Gordon model is studied in this paper. We use an analytic self-consistent theory to derive the excitation spectrum of the global sine-Gordon model, and then to study the bound state induced by local impurity. We give the conditions where an impurity level exists within the global gap of the excitation spectrum and show the possibility of the existence of a threshold value about the model parameter.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000071716800006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12365
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yuan, QS,Chen, YG,Chen, H,et al. Bound state in a one-dimensional quantum sine-Gordon model[J]. PHYSICAL REVIEW B,1998,57(3):1324-1327.
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