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题名: Topological bands in one-dimensional periodic potentials
作者: Zheng, Y ;  Yang, SJ
刊名: PHYSICA B-CONDENSED MATTER
出版日期: 2014
卷号: 454, 期号:-, 页码:93-97
关键词: HALL ;  INSULATORS ;  WAVE
学科分类: Physics
DOI: 10.1016/j.physb.2014.07.026
通讯作者: Yang, SJ (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
部门归属: [Zheng, Yi
英文摘要: We study the properties of the quantum states in the one-dimensional system with a shifted periodic potential in both the discrete model and the continuous model. With open boundary conditions, the edge states appear in the energy gaps which indicate non trivial topological structures. The Chern numbers with respect to the Bloch vector and the potential shift angle are computed. In the limit of the continuous model, the Chern number of each band is exactly one We demonstrate that the particle number pumped by the adiabatically shift of the potential is directly related to the topological invariants. (C) 2014 Elsevier B.V. All rights reserved.
资助者: NSF of China [11374036]; National 973 program [2012CB821403]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000342682100016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15562
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Zheng, Y,Yang, SJ. Topological bands in one-dimensional periodic potentials[J]. PHYSICA B-CONDENSED MATTER,2014,454(-):93-97.
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