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arXiv · 1107.4102

Unconventional Josephson signatures of Majorana bound states

Liang Jiang·David Pekker·Jason Alicea·Gil Refael·Yuval Oreg·Felix von Oppen
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Abstract

A junction between two topological superconductors containing a pair of Majorana fermions exhibits a `fractional' Josephson effect, $4π$ periodic in the superconductors' phase difference. An additional fractional Josephson effect, however, arises when the Majoranas 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.

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Liang Jiang, David Pekker, Jason Alicea, Gil Refael, Yuval Oreg, Felix von Oppen. 2011-07-20. Unconventional Josephson signatures of Majorana bound states. https://doi.org/10.1103/physrevlett.107.236401

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