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In-vacuo growth and fabrication of superconductor-semiconductor hybrid heterostructures for topological quantum computation

ORAL

Abstract

Superconductor-semiconductor heterostructures are the backbone of Majorana Zero Mode (MZM) based topological quantum computing. Magneto-transport in nanowires of InSb with partial shells of aluminum has highlighted the significance of abrupt and epitaxial, in-vacuo growth of superconductors on semiconductors. Going forward, two key challenges need to be addressed. Firstly, the demonstration of in-vacuo, selective area growth of superconductors on wafer-scale semiconductors and, secondly, in-vacuo fabrication of proposed topological qubit devices. This work reports on the Molecular Beam Epitaxy (MBE) of selective area hybrid heterostructures using various approaches with the aim of creating a versatile platform for fabrication of topological qubits in vacuo.

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Presenters

  • Mihir Pendharkar

    Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, IEE, UC Santa Barbara, University of California Santa Barbara, Univ of California, Santa Barbara, Electrical and Computer Engineering, University of California Santa Barbara, Electrical & Computer Engineering, University of California, Santa Barbara, University of California, Santa Barbara

Authors

  • Mihir Pendharkar

    Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, IEE, UC Santa Barbara, University of California Santa Barbara, Univ of California, Santa Barbara, Electrical and Computer Engineering, University of California Santa Barbara, Electrical & Computer Engineering, University of California, Santa Barbara, University of California, Santa Barbara

  • Joon Sue Lee

    California Nano-Systems Institute, Univ. of California, Santa Barbara, CA, USA, University of Tennessee Knoxville, Univ of California, Santa Barbara, Physics & Astronomy, Seoul National University, University of California Santa Barbara, California Nanosystems Institute, University of California Santa Barbara, University of California, Santa Barbara

  • Anthony P McFadden

    UCSB, Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, University of California, Santa Barbara, Univ of California, Santa Barbara

  • Sasa Gazibegovic

    Dept. of Physics, Technical University, Eindhoven, The Netherlands, Eindhoven University of Technology, Department of Applied Physics, Eindhoven University of Technology, Applied Physics, Eindhoven Univ. of Technology, TU Eindhoven

  • Roy Op het Veld

    Dept. of Physics, Technical University, Eindhoven, The Netherlands, Eindhoven University of Technology, Applied Physics, Eindhoven Univ. of Technology, TU Eindhoven, Department of Applied Physics, Eindhoven University of Technology

  • connor dempsey

    Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, IEE, UC Santa Barbara, University of California Santa Barbara

  • Sean Harrington

    Materials Department, University of California, Santa Barbara, Dept. of Materials Engineering, Univ. of California, Santa Barbara, CA, USA, IEE, UC Santa Barbara, Univ of California, Santa Barbara, University of California, Santa Barbara

  • Aranya Goswami

    Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, Electrical and Computer Engineering Department, University of California, Santa Barbara, University of California Santa Barbara

  • Michael A Seas

    Dept. of Materials Engineering, Univ. of California, Santa Barbara, CA, USA

  • Sukgeun Choi

    Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, Univ. of California, Santa Barbara, Electrical and Computer Engineering Department, University of California, Santa Barbara, University of California Santa Barbara

  • Ghada Badawy

    Dept. of Physics, Technical University, Eindhoven, The Netherlands, Eindhoven University of Technology, Department of Applied Physics, Eindhoven University of Technology, Applied Physics, Eindhoven Univ. of Technology, TU Eindhoven

  • Jason Jung

    Dept. of Physics, Technical University, Eindhoven, The Netherlands, Applied Physics, Eindhoven Univ. of Technology, Department of Applied Physics, Eindhoven University of Technology

  • Moira Hocevar

    Institute Neel, CNRS, Grenoble, France, Institute Neel, CEA Grenoble, Neel Institute, CNRS

  • Leo P Kouwenhoven

    Dept. of Physics, Technical University, Delft, The Netherlands, Microsoft Quantum Lab Delft, Microsoft Quantum Lab Delft, Delft University of Technology, Microsoft Corp Delft, Quantum Lab Delft, Microsoft, Delft University of Technology, QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Microsoft Corp

  • Roman Lutchyn

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

  • Michael H Freedman

    Microsoft Quantum, Santa Barbara, CA, USA

  • Sergey M Frolov

    Dept. of Physics, Univ. of Pittsburgh, Pittsburgh, PA, USA, Univ of Pittsburgh, University of Pittsburgh, Physics, Univ. of Pittsburgh

  • Erik Bakkers

    Dept. of Physics, Technical University, Eindhoven, The Netherlands, Eindhoven University of Technology, Department of Applied Physics, Eindhoven University of Technology, Applied Physics, Eindhoven Univ. of Technology, TU Eindhoven, Applied Physics, Eindhoven University of Technology

  • Chris J Palmstrom

    Materials Department, University of California, Santa Barbara, UCSB, Departments of Electrical and Computer Engineering and Materials, University of California, Santa Barbara, Dept. of Electrical Engineering, Univ. of California, Santa Barbara, CA, USA, Univ. of California, Santa Barbara, Electrical and Computer Engineering Department, University of California, Santa Barbara, University of California, Santa Barbara, IEE, UC Santa Barbara, University of California Santa Barbara, Univ of California, Santa Barbara, Electrical and Computer Engineering, University of California Santa Barbara, Materials and Electrical & Comp. Eng, University of California, Santa Barbara