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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

This Submission thread is now published as SciPost Phys. 8, 013 (2020)

Submission summary

As Contributors: Inanc Adagideli · Carlo Beenakker · Aurélien Grabsch · Michał Pacholski
Preprint link: scipost_201912_00022v1
Date accepted: 2020-01-08
Date submitted: 2019-12-09 01:00
Submitted by: Adagideli, Inanc
Submitted to: SciPost Physics
Academic field: Physics
Specialties:
  • Condensed Matter Physics - Theory
  • 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

Published as SciPost Phys. 8, 013 (2020)

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Resubmission scipost_201912_00022v1 on 9 December 2019

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