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Exponential protection of zero modes in Majorana islands

Author

Listed:
  • S. M. Albrecht

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

  • A. P. Higginbotham

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen
    Harvard University)

  • M. Madsen

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

  • F. Kuemmeth

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

  • T. S. Jespersen

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

  • J. Nygård

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

  • P. Krogstrup

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

  • C. M. Marcus

    (Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen)

Abstract

The splitting of zero-energy Majorana modes in a tunnel-coupled InAs nanowire with epitaxial aluminium is exponentially suppressed as the wire length is increased, resulting in protection of these modes; this result helps to establish the robust presence of Majorana modes and quantifies exponential protection in nanowire devices.

Suggested Citation

  • S. M. Albrecht & A. P. Higginbotham & M. Madsen & F. Kuemmeth & T. S. Jespersen & J. Nygård & P. Krogstrup & C. M. Marcus, 2016. "Exponential protection of zero modes in Majorana islands," Nature, Nature, vol. 531(7593), pages 206-209, March.
    • Handle: RePEc:nat:nature:v:531:y:2016:i:7593:d:10.1038_nature17162
    DOI: 10.1038/nature17162
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    Citations

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    Cited by:

    1. Juan Carlos Estrada Saldaña & Alexandros Vekris & Luka Pavešić & Peter Krogstrup & Rok Žitko & Kasper Grove-Rasmussen & Jesper Nygård, 2022. "Excitations in a superconducting Coulombic energy gap," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Yiru Hao & Gu Zhang & Donghao Liu & Dong E. Liu, 2022. "Anomalous universal conductance as a hallmark of non-locality in a Majorana-hosted superconducting island," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Sandra Benter & Adam Jönsson & Jonas Johansson & Lin Zhu & Evangelos Golias & Lars-Erik Wernersson & Anders Mikkelsen, 2023. "Geometric control of diffusing elements on InAs semiconductor surfaces via metal contacts," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Hemian Yi & Lun-Hui Hu & Yi-Fan Zhao & Ling-Jie Zhou & Zi-Jie Yan & Ruoxi Zhang & Wei Yuan & Zihao Wang & Ke Wang & Danielle Reifsnyder Hickey & Anthony R. Richardella & John Singleton & Laurel E. Win, 2023. "Dirac-fermion-assisted interfacial superconductivity in epitaxial topological-insulator/iron-chalcogenide heterostructures," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    5. Juan Carlos Estrada Saldaña & Alexandros Vekris & Luka Pavešič & Rok Žitko & Kasper Grove-Rasmussen & Jesper Nygård, 2024. "Correlation between two distant quasiparticles in separate superconducting islands mediated by a single spin," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    6. Gang Qiu & Hung-Yu Yang & Lunhui Hu & Huairuo Zhang & Chih-Yen Chen & Yanfeng Lyu & Christopher Eckberg & Peng Deng & Sergiy Krylyuk & Albert V. Davydov & Ruixing Zhang & Kang L. Wang, 2023. "Emergent ferromagnetism with superconductivity in Fe(Te,Se) van der Waals Josephson junctions," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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