Long-range exchange coupling for spin qubits

 · Invited

Abstract

To scale the arrays of single-electron quantum dots arrays it is necessary to realize long-range spin coupling. In the talk I will present our study of multielectron quantum dots and demonstrate they mediate exchange interaction. In addition I will discuss tunability of multielectron coupler and argue that it can also be used to transfer the electrons between non-neighboring dots.

*This work was supported by the Army Research Office, the Innovation Fund Denmark, the Villum Foundation, and the Danish National Research Foundation.

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Presenters

  • Filip Malinowski

    • Univ of Copenhagen

Authors

  • Filip Malinowski

    • Univ of Copenhagen

  • Frederico Martins

    • Univ of Copenhagen

  • Thomas Smith

    • Univ of Sydney
    • University of Sydney

  • Andrew Doherty

    • Physics, The University of Sydney
    • Univ of Sydney
    • University of Sydney

  • Stephen Bartlett

    • Physics, The University of Sydney
    • Univ of Sydney
    • University of Sydney

  • Peter Nissen

    • Univ of Copenhagen

  • Saeed Fallahi

    • Purdue University
    • Physics, Purdue University
    • Purdue Univ
    • Department of Physics and Astronomy, and School of Materials Engineering, and School of Electrical and Computer Engineering, Purdue University

  • Geoffrey Gardner

    • Department of Physics and Astronomy and Station Q Purdue, Purdue University
    • Microsoft Station Q Purdue
    • Birck Nanotechnology Center, Purdue University
    • Purdue University, Station Q Purdue
    • Purdue Univ
    • Purdue University
    • Physics and Astronomy, Purdue University

  • Michael Manfra

    • Department of Physics and Astronomy and Station Q Purdue, Purdue University
    • Department of Physics and Astronomy and Microsoft Station Q Purdue, Purdue University
    • Purdue University
    • Physics, Purdue University
    • Purdue University, Station Q Purdue
    • Purdue Univ
    • Department of Physics and Astronomy, and School of Materials Engineering, and School of Electrical and Computer Engineering, Purdue University
    • Physics and Astronomy, Purdue University
    • Dept. of Physics and Astronomy, Purdue Univ

  • Charles Marcus

    • Center for Quantum Devices and Microsoft Station Q Copenhagen, Niels Bohr Institute
    • Center for Quantum Devices, Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen
    • Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen
    • Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute
    • Niels Bohr Institute, Univ of Copenhagen
    • Univ of Copenhagen
    • University of Copenhagen

  • Ferdinand Kuemmeth

    • Center for Quantum Devices, Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen
    • Niels Bohr Institute, Univ of Copenhagen
    • Univ of Copenhagen