Frequency domain winding number and interaction effect on topological insulators
文献类型：期刊论文
| 作者 | Wang, L ; Dai, X ; Xie, XC |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 84期号:20 |
| 关键词 | INFINITE DIMENSIONS LATTICE FERMIONS MAGNETIC-FIELD HUBBARD-MODEL QUANTUM SYSTEMS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Wang, L: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We study the effect of interactions on the time-reversal invariant topological insulators in four and three spatial dimensions. Their topological indices are expressed by the interacting Green's functions. Under the local self-energy approximation, we find that interaction could induce nontrivial frequency-domain winding numbers and change the topological classes of the system. Our results suggest that the topological phases could be destroyed without developing long-range orders. Practical issues on the accurate frequency-momentum integration combined with dynamical-mean-field theory and diagrammatic calculations of the interacting Green's functions are also addressed. |
| 收录类别 | SCI |
| 资助信息 | NSF, China; MOST, China |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38473]  |
| 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 | Wang, L,Dai, X,Xie, XC. Frequency domain winding number and interaction effect on topological insulators[J]. PHYSICAL REVIEW B,2011,84(20). |
| APA | Wang, L,Dai, X,&Xie, XC.(2011).Frequency domain winding number and interaction effect on topological insulators.PHYSICAL REVIEW B,84(20). |
| MLA | Wang, L,et al."Frequency domain winding number and interaction effect on topological insulators".PHYSICAL REVIEW B 84.20(2011). |
入库方式： OAI收割
来源：物理研究所
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