Topologically protected mid-gap states induced by impurity in one-dimensional superlattices
文献类型：期刊论文
| 作者 | Lang, LJ ; Chen, S |
| 刊名 | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
 |
| 出版日期 | 2014 |
| 卷号 | 47期号:6 |
| 关键词 | superlattice impurity mid-gap state |
| ISSN号 | 0953-4075 |
| 通讯作者 | Lang, LJ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Based on the discovery of the nontrivial topological properties of one-dimensional superlattices, we show that mid-gap states emerge in such systems induced by a single on-site impurity. Besides the trivial bound state located at the impurity site, these mid-gap states are localized at the adjacent sites of the impurity in the limit of a strongly attractive/repulsive impurity potential, behaving as edge states under open boundary conditions and thus carrying the information of topological properties. This feature makes it possible to reveal the topological properties of superlattices via the impurity effect and to realize the adiabatic pumping between the opposite sides of the impurity in setups of one-dimensional optical lattices or photonic crystals. |
| 资助信息 | National Program for Basic Research of MOST; NSF of China [11121063, 11174360]; 973 grant; AFOSR [FA9550-12-1-0079]; ARO [W911NF-11-1-0230]; DARPA OLE Programme through ARO |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59258]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Lang, LJ,Chen, S. Topologically protected mid-gap states induced by impurity in one-dimensional superlattices[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2014,47(6). |
| APA | Lang, LJ,&Chen, S.(2014).Topologically protected mid-gap states induced by impurity in one-dimensional superlattices.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,47(6). |
| MLA | Lang, LJ,et al."Topologically protected mid-gap states induced by impurity in one-dimensional superlattices".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 47.6(2014). |
入库方式： OAI收割
来源：物理研究所
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