Jackiw-Rebbi-type bound state carrying fractional fermion parity
文献类型：期刊论文
| 作者 | Xiong, Y; Tong, PQ |
| 刊名 | JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
 |
| 出版日期 | 2015 |
| 期号 | 0页码:P02013 |
| 关键词 | fractional states (theory) quantum wires (theory) topology and combinatorics |
| 通讯作者 | Xiong, Y (reprint author), Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China. |
| 英文摘要 | We find the coexistence of two kinds of fractionalized modes, Majorana modes at the geometric ends and Jackiw-Rebbi-type bound state (JRBS) at a domain-wall, in a new topological superconducting phase in one-dimensional (1D) systems. Each localized JRBS carries a new fractional quantity, half of the parity of the fermion number. This induces a topological protected crossing at the zero energy for its eigenenergy. For a chain embedded with a JRBS, it is possible to switch between the occupied and the empty states of the Majorana zero energy state (MZES) by varying the strength of the external magnetic field across that crossing point. This enables a way to encode a quantum qubit into one MZES without breaking parity conservation. We propose that such JRBS and Majorana fermions may appear in two 1D models. One may be implemented in an artificial lattice with staggered hopping, staggered spin-orbital interaction and staggered superconducting pairing in cold fermion atoms. The other is a 1D semiconductor chain sandwiched between s-wave superconductor and antiferromagnet. |
| 学科主题 | Mechanics ; Physics |
| 类目[WOS] | Mechanics ; Physics, Mathematical |
| 关键词[WOS] | WANNIER FUNCTIONS ; SOLITONS ; POLYACETYLENE |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21102]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Xiong, Y,Tong, PQ. Jackiw-Rebbi-type bound state carrying fractional fermion parity[J]. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT,2015(0):P02013. |
| APA | Xiong, Y,&Tong, PQ.(2015).Jackiw-Rebbi-type bound state carrying fractional fermion parity.JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT(0),P02013. |
| MLA | Xiong, Y,et al."Jackiw-Rebbi-type bound state carrying fractional fermion parity".JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT .0(2015):P02013. |
入库方式： OAI收割
来源：理论物理研究所
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