Majorana fermions in density-modulated p-wave superconducting wires
文献类型：期刊论文
| 作者 | Lang, LJ ; Chen, S |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2012 |
| 卷号 | 86期号:20 |
| 关键词 | NON-ABELIAN STATISTICS QUANTUM CHAIN |
| ISSN号 | 1098-0121 |
| 通讯作者 | Lang, LJ: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We study the p-wave superconducting wire with a periodically modulated chemical potential and show that the Majorana edge states are robust against the periodic modulation. We find that the critical amplitude of modulated potential, at which the Majorana edge fermions and topological phase disappear, strongly depends on the phase shifts. For some specific values of the phase shift, the critical amplitude tends to infinity. The existence of Majorana edge fermions in the open chain can be characterized by a topological Z(2) invariant of the bulk system, which can be applied to determine the phase boundary between the topologically trivial and nontrivial superconducting phases. We also demonstrate the existence of the zero-energy peak in the spectral function of the topological superconducting phase, which is only sensitive to the open boundary condition but robust against the disorder. |
| 收录类别 | SCI |
| 资助信息 | National Program for Basic Research of MOST; NSF of China [11121063, 11174360]; 973 grant |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41721]  |
| 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. Majorana fermions in density-modulated p-wave superconducting wires[J]. PHYSICAL REVIEW B,2012,86(20). |
| APA | Lang, LJ,&Chen, S.(2012).Majorana fermions in density-modulated p-wave superconducting wires.PHYSICAL REVIEW B,86(20). |
| MLA | Lang, LJ,et al."Majorana fermions in density-modulated p-wave superconducting wires".PHYSICAL REVIEW B 86.20(2012). |
入库方式： OAI收割
来源：物理研究所
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