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Unconventional Josephson Signatures of Majorana Bound States

Jiang, Liang and Pekker, David and Alicea, Jason and Refael, Gil and Oreg, Yuval and von Oppen, Felix (2011) Unconventional Josephson Signatures of Majorana Bound States. Physical Review Letters, 107 (23). p. 236401. ISSN 0031-9007.

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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 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.

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Additional Information:© 2011 American Physical Society. Received 27 July 2011; published 28 November 2011. It is a pleasure to thank M. P. A. Fisher, L. Glazman, J. Preskill, A. Kitaev, A. Stern, J. Meyer, K. Shtengel, C. Marcus, L. Kouwenhoven, and B. Halperin for useful discussions, and the Aspen Center for Physics for hospitality. We are also grateful for support from BSF, SPP1285 (DFG), the Packard Foundation, the Sherman-Fairchild Foundation, the Moore Foundation funded CEQS, and the NSF through Grant No. DMR-1055522 and IQI Grants No. PHY-0456720 and No. PHY-0803371.
Group:Institute for Quantum Information and Matter, IQIM
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Packard FoundationUNSPECIFIED
Sherman-Fairchild FoundationUNSPECIFIED
Moore FoundationUNSPECIFIED
NSF IQIPHY-0456720
NSF IQIPHY-0803371
Classification Code:PACS: 71.10.Pm, 03.67.Lx, 73.63.Nm, 74.78.Na
Record Number:CaltechAUTHORS:20120104-113454842
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28648
Deposited By: Jason Perez
Deposited On:04 Jan 2012 23:40
Last Modified:26 Dec 2012 14:39

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