Steering Majorana braiding via skyrmion-vortex pairs: A scalable platform

Jonas Nothhelfer, Sebastián A. Díaz, Stephan Kessler, Tobias Meng, Matteo Rizzi, Kjetil M. D. Hals, and Karin Everschor-Sitte
Phys. Rev. B 105, 224509 – Published 13 June 2022
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Abstract

Majorana zero modes are quasiparticles that hold promise as building blocks for topological quantum computing. However, the litmus test for their detection, the observation of exotic non-Abelian statistics revealed by braiding, has so far eluded experimental efforts. Here, we take advantage of the fact that skyrmion-vortex pairs in superconductor-ferromagnet heterostructures harboring Majorana zero modes can be easily manipulated in two spatial dimensions. We adiabatically braid the hybrid topological structures and explicitly confirm the non-Abelian statistics of the Majorana zero modes numerically using a self-consistent calculation of the superconducting order parameter. Our proposal of controlling skyrmion-vortex pairs provides the necessary leeway toward a scalable topological quantum computing platform.

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  • Received 4 November 2021
  • Revised 23 May 2022
  • Accepted 23 May 2022

DOI:https://doi.org/10.1103/PhysRevB.105.224509

©2022 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology

Authors & Affiliations

Jonas Nothhelfer1, Sebastián A. Díaz1, Stephan Kessler2, Tobias Meng3, Matteo Rizzi4,5, Kjetil M. D. Hals6, and Karin Everschor-Sitte1,7

  • 1Faculty of Physics, University of Duisburg-Essen, D-47057 Duisburg, Germany
  • 2Institute of Physics, Johannes Gutenberg University of Mainz, D-55128 Mainz, Germany
  • 3Institute of Theoretical Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität Dresden, D-01069 Dresden, Germany
  • 4Forschungszentrum Jülich GmbH, Institute of Quantum Control, Peter Grünberg Institut (PGI-8), D-52425 Jülich, Germany
  • 5Institute for Theoretical Physics, University of Cologne, D-50937 Köln, Germany
  • 6Department of Engineering Sciences, University of Agder, NO-4879 Grimstad, Norway
  • 7Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, D-47057 Duisburg, Germany

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Issue

Vol. 105, Iss. 22 — 1 June 2022

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