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Majorana fermions and odd-frequency Cooper pairs in a normal-metal nanowire proximity-coupled to a topological superconductor
| Title: | Majorana fermions and odd-frequency Cooper pairs in a normal-metal nanowire proximity-coupled to a topological superconductor |
| Authors: | Asano, Yasuhiro Browse this author →KAKEN DB | | Tanaka, Yukio Browse this author |
| Issue Date: | 15-Mar-2013 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 87 |
| Issue: | 10 |
| Start Page: | 104513 |
| Publisher DOI: | 10.1103/PhysRevB.87.104513 |
| Abstract: | We discuss a strong relationship between Majorana fermions and odd-frequency Cooper pairs which appear at a disordered normal (N) nanowire attached to a topologically nontrivial superconducting (S) one. The transport properties in superconducting nanowire junctions show universal behaviors irrespective of the degree of disorder: the quantized zero-bias differential conductance at 2e(2)/h in NS junction and the fractional current-phase (J-phi) relationship of the Josephson effect in SNS junction J alpha sin(phi/2). Such behaviors are exactly the same as those found in the anomalous proximity effect of odd-parity spin-triplet superconductors. We show that the odd-frequency pairs exist wherever the Majorana fermions stay. DOI: 10.1103/PhysRevB.87.104513 |
| Rights: | ©2013 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/52640 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 浅野 泰寛
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