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Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor
Stockholm University, Faculty of Science, Department of Physics. University of Innsbruck, Austria; Austrian Academy of Sciences, Austria.
2014 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 89, no 15, 155431- p.Article in journal (Refereed) Published
Abstract [en]

A one-dimensional topological superconductor features a single fermionic zero mode that is delocalized over two Majorana bound states located at the ends of the system. We study a pair of spatially separated nanomechanical oscillators tunnel coupled to these Majorana modes. Most interestingly, we demonstrate that the combination of electron-phonon coupling and a finite charging energy on the mesoscopic topological superconductor can lead to an effective superexchange between the oscillators via the nonlocal fermionic zero mode. We further show that this electron teleportation mechanism leads to entanglement of the two oscillators over distances that can significantly exceed the coherence length of the superconductor.

Place, publisher, year, edition, pages
2014. Vol. 89, no 15, 155431- p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-106114DOI: 10.1103/PhysRevB.89.155431ISI: 000337301200007OAI: oai:DiVA.org:su-106114DiVA: diva2:735158
Note

AuthorCount:2;

Available from: 2014-07-23 Created: 2014-07-21 Last updated: 2017-12-05Bibliographically approved

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