Deterministic creation and braiding of chiral edge vortices

C.W.J. Beenakker, P. Baireuther, Y. Herasymenko, I. Adagideli, Lin Wang, A. R. Akhmerov

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)
159 Downloads (Pure)

Abstract

Majorana zero modes in a superconductor are midgap states localized in the core of a vortex or bound to the end of a nanowire. They are anyons with non-Abelian braiding statistics, but when they are immobile one cannot demonstrate this by exchanging them in real space and indirect methods are needed. As a real-space alternative, we propose to use the chiral motion along the boundary of the superconductor to braid a mobile vortex in the edge channel with an immobile vortex in the bulk. The measurement scheme is fully electrical and deterministic: Edge vortices (π-phase domain walls) are created on demand by a voltage pulse at a Josephson junction and the braiding with a Majorana zero mode in the bulk is detected by the charge produced upon their fusion at a second Josephson junction.

Original languageEnglish
Article number146803
JournalPhysical Review Letters
Volume122
Issue number14
DOIs
Publication statusPublished - 2019

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