Synthetic Weyl Points and Chiral Anomaly in Majorana Devices with Nonstandard Andreev-Bound-State Spectra
文献类型：期刊论文
| 作者 | Kotetes, Panagiotis2; Mercaldo, Maria Teresa3; Cuoco, Mario1,3 |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2019 |
| 卷号 | 123期号:12页码:126802 |
| 关键词 | NON-ABELIAN STATISTICS TOPOLOGICAL SUPERCONDUCTIVITY JOSEPHSON CURRENT QUASI-PARTICLES QUANTUM FERMIONS JUNCTIONS |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.123.126802 |
| 英文摘要 | We demonstrate how to design various nonstandard types of Andreev-bound-state (ABS) dispersions, via a composite construction relying on Majorana bound states (MBSs). Here, the MBSs appear at the interface of a Josephson junction consisting of two topological superconductors (TSCs). Each TSC harbors multiple MBSs per edge by virtue of a chiral or unitary symmetry. We find that, while the ABS dispersions are 2 pi periodic, they still contain multiple crossings which are protected by the conservation of fermion parity. A single junction with four interface MBSs and all MBS couplings fully controllable, or networks of such coupled junctions with partial coupling tunability, open the door for topological band structures with Weyl points or nodes in synthetic dimensions, which in turn allow for fermion-parity (FP) pumping with a cycle set by the ABS-dispersion details. In fact, in the case of nodes, the FP pumping is a manifestation of chiral anomaly in 2D synthetic spacetime. The possible experimental demonstration of ABS engineering in these devices further promises to unveil new paths for the detection of MBSs and higher-dimensional chiral anomaly. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27101]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Salerno, Dipartimento Fis ER Caianiello, IT-84084 Fisciano, SA, Italy 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark 4.CNR, SPIN, IT-84084 Fisciano, SA, Italy |
| 推荐引用方式 GB/T 7714 | Kotetes, Panagiotis,Mercaldo, Maria Teresa,Cuoco, Mario. Synthetic Weyl Points and Chiral Anomaly in Majorana Devices with Nonstandard Andreev-Bound-State Spectra[J]. PHYSICAL REVIEW LETTERS,2019,123(12):126802. |
| APA | Kotetes, Panagiotis,Mercaldo, Maria Teresa,&Cuoco, Mario.(2019).Synthetic Weyl Points and Chiral Anomaly in Majorana Devices with Nonstandard Andreev-Bound-State Spectra.PHYSICAL REVIEW LETTERS,123(12),126802. |
| MLA | Kotetes, Panagiotis,et al."Synthetic Weyl Points and Chiral Anomaly in Majorana Devices with Nonstandard Andreev-Bound-State Spectra".PHYSICAL REVIEW LETTERS 123.12(2019):126802. |
入库方式： OAI收割
来源：理论物理研究所
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