Topological superconductivity in full shell proximitized nanowires

ORAL

Abstract

We consider a new model system supporting Majorana zero modes based on semiconductor nanowires with a full superconducting shell. We demonstrate that, in the presence of spin-orbit coupling in the semiconductor induced by a radial electric field, the winding of the superconducting order parameter leads to a topological phase supporting Majorana zero modes. The topological phase persists over a large range of chemical potentials and can be induced by a predictable and weak magnetic field piercing the cylinder. The system can be readily realized in semiconductor nanowires covered by a full superconducting shell, opening a pathway for realizing topological quantum computing proposals.

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Presenters

  • Roman Lutchyn

    Station Q, Microsoft Research, Santa Barbara, California 93106-6105, USA, Microsoft Station Q, Microsoft Quantum, Station Q, Microsoft Corp, Station Q, Microsoft, Microsoft

Authors

  • Roman Lutchyn

    Station Q, Microsoft Research, Santa Barbara, California 93106-6105, USA, Microsoft Station Q, Microsoft Quantum, Station Q, Microsoft Corp, Station Q, Microsoft, Microsoft

  • Georg W. Winkler

    Station Q, Microsoft Research, Santa Barbara, California 93106-6105, USA, Microsoft Station Q, Microsoft Quantum, Station Q, Microsoft Corp, Microsoft

  • Bernard Van Heck

    Microsoft, Microsoft Station Q, UCSB, Microsoft Station Q, Microsoft Quantum, Station Q, Microsoft Corp, Microsoft Station Q Santa Barbara, Station Q, Microsoft Research, Center for Quantum Devices and Microsoft Quantum Lab–Copenhagen, Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark and Microsoft Quantum, Microsoft Sta, Station Q, Microsoft

  • Torsten Karzig

    Microsoft Station Q, Microsoft Quantum, Station Q, Microsoft Corp, Station Q, Microsoft, Station-Q, Microsoft Research, Microsoft Corp, Microsoft

  • Karsten Flensberg

    Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen, University of Copenhagen

  • Leonid Glazman

    Physics, Yale University, Departments of Physics and Applied Physics, Yale University, Yale University, Yale Univ

  • Chetan Nayak

    Microsoft Station Q, UCSB, Microsoft, Microsoft Station Q, Microsoft Quantum, Station Q, Microsoft Corp, University of California, Santa Barbara