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Majorana fermions and odd-frequency Cooper pairs in a normal-metal nanowire proximity-coupled to a topological superconductor

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/52640

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)

Submitter: 浅野 泰寛

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