Deterministic creation and braiding of chiral edge vortices

Journal article (2019)

Authors

CWJ Beenakker Universiteit Leiden
P. Baireuther Universiteit Leiden
Y. Herasymenko Universiteit Leiden
I. Adagideli Sabancı University
L. Wang Kavli institute of nanoscience Delft, QN/Akhmerov Group - AS
A.R. Akhmerov QN/Akhmerov Group - AS , Kavli institute of nanoscience Delft
Research Group
QN/Akhmerov Group (AS) (TU Delft)
Copyright: © 2019 C.W.J. Beenakker, P. Baireuther, Y. Herasymenko, I. Adagideli, L. Wang, A.R. Akhmerov
DOI
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https://doi.org/10.1103/PhysRevLett.122.146803
More Info
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Published Date

2019

Language

English

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Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Akhmerov Group

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.