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Time-resolved electrical detection of chiral edge vortex braiding

by I. Adagideli, F. Hassler, A. Grabsch, M. Pacholski, and C.W.J. Beenakker

Submission summary

As Contributors: Inanc Adagideli · Carlo Beenakker · Aurélien Grabsch
Preprint link: scipost_201912_00022v1
Date accepted: 2020-01-08
Date submitted: 2019-12-09
Submitted by: Adagideli, Inanc
Submitted to: SciPost Physics
Discipline: Physics
Subject area: Quantum Physics
Approach: Theoretical

Abstract

A $\boldsymbol{2\pi}$ phase shift across a Josephson junction in a topological superconductor injects vortices into the chiral edge modes at opposite ends of the junction. When two vortices are fused they transfer charge into a metal contact. We calculate the time dependent current profile for the fusion process, which consists of $\boldsymbol{\pm e/2}$ charge pulses that flip sign if the world lines of the vortices are braided prior to the fusion. This is an electrical signature of the non-Abelian exchange of Majorana zero-modes.

Ontology / Topics

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Josephson junction Majorana zero modes Topological superconductivity

Published as SciPost Phys. 8, 013 (2020)



Submission & Refereeing History

Resubmission scipost_201912_00022v1 on 9 December 2019
Submission 1907.02422v2 on 20 August 2019

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