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Selective control of conductance modes in multi-terminal Josephson junctions

Author

Listed:
  • Gino V. Graziano

    (University of Minnesota)

  • Mohit Gupta

    (University of Minnesota)

  • Mihir Pendharkar

    (Electrical and Computer Engineering, University of California Santa Barbara
    Materials Science and Engineering, Stanford University)

  • Jason T. Dong

    (University of California Santa Barbara)

  • Connor P. Dempsey

    (Electrical and Computer Engineering, University of California Santa Barbara)

  • Chris Palmstrøm

    (Electrical and Computer Engineering, University of California Santa Barbara
    University of California Santa Barbara
    California NanoSystems Institute, University of California Santa Barbara)

  • Vlad S. Pribiag

    (University of Minnesota)

Abstract

The Andreev bound state spectra of multi-terminal Josephson junctions form an artificial band structure, which is predicted to host tunable topological phases under certain conditions. However, the number of conductance modes between the terminals of a multi-terminal Josephson junction must be few in order for this spectrum to be experimentally accessible. In this work, we employ a quantum point contact geometry in three-terminal Josephson devices to demonstrate independent control of conductance modes between each pair of terminals and access to the single-mode regime coexistent with the presence of superconducting coupling. These results establish a full platform on which to realize tunable Andreev bound state spectra in multi-terminal Josephson junctions.

Suggested Citation

  • Gino V. Graziano & Mohit Gupta & Mihir Pendharkar & Jason T. Dong & Connor P. Dempsey & Chris Palmstrøm & Vlad S. Pribiag, 2022. "Selective control of conductance modes in multi-terminal Josephson junctions," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-33682-2
    DOI: 10.1038/s41467-022-33682-2
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    References listed on IDEAS

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    1. Dominique Laroche & Daniël Bouman & David J. Woerkom & Alex Proutski & Chaitanya Murthy & Dmitry I. Pikulin & Chetan Nayak & Ruben J. J. Gulik & Jesper Nygård & Peter Krogstrup & Leo P. Kouwenhoven & , 2019. "Observation of the 4π-periodic Josephson effect in indium arsenide nanowires," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    2. Antonio Fornieri & Alexander M. Whiticar & F. Setiawan & Elías Portolés & Asbjørn C. C. Drachmann & Anna Keselman & Sergei Gronin & Candice Thomas & Tian Wang & Ray Kallaher & Geoffrey C. Gardner & Er, 2019. "Evidence of topological superconductivity in planar Josephson junctions," Nature, Nature, vol. 569(7754), pages 89-92, May.
    3. Roman-Pascal Riwar & Manuel Houzet & Julia S. Meyer & Yuli V. Nazarov, 2016. "Multi-terminal Josephson junctions as topological matter," Nature Communications, Nature, vol. 7(1), pages 1-5, September.
    4. Ko-Fan Huang & Yuval Ronen & Régis Mélin & Denis Feinberg & Kenji Watanabe & Takashi Taniguchi & Philip Kim, 2022. "Evidence for 4e charge of Cooper quartets in a biased multi-terminal graphene-based Josephson junction," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    5. Hechen Ren & Falko Pientka & Sean Hart & Andrew T. Pierce & Michael Kosowsky & Lukas Lunczer & Raimund Schlereth & Benedikt Scharf & Ewelina M. Hankiewicz & Laurens W. Molenkamp & Bertrand I. Halperin, 2019. "Topological superconductivity in a phase-controlled Josephson junction," Nature, Nature, vol. 569(7754), pages 93-98, May.
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    Cited by:

    1. Mohit Gupta & Gino V. Graziano & Mihir Pendharkar & Jason T. Dong & Connor P. Dempsey & Chris Palmstrøm & Vlad S. Pribiag, 2023. "Gate-tunable superconducting diode effect in a three-terminal Josephson device," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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