Unconventional Josephson Signatures of Majorana Bound States

被引：145

作者：

Jiang, Liang ^{[1
]}

Pekker, David ^{[1
]}

Alicea, Jason ^{[2
]}

Refael, Gil ^{[1
]}

Oreg, Yuval ^{[3
]}

von Oppen, Felix ^{[4
,5
]}

机构：

[1] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[3] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel

[4] Free Univ Berlin, Dahlem Ctr Complex Quantum Syst, D-14195 Berlin, Germany

[5] Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 23期

关键词：

TOPOLOGICAL QUANTUM COMPUTATION; SUPERCONDUCTORS; ANYONS;

D O I：

10.1103/PhysRevLett.107.236401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A junction between two topological superconductors containing a pair of Majorana fermions exhibits a "fractional" Josephson effect, 4 pi periodic in the superconductors' phase difference. An additional fractional Josephson effect, however, arises when the Majorana fermions are spatially separated by a superconducting barrier. This new term gives rise to a set of Shapiro steps which are essentially absent without Majorana modes and therefore provides a unique signature for these exotic states.

引用

页数：5

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