- Physical Review Journals
All JournalsPhysics Magazine

Physical Review Letters

Export citation

Export citation

Choose format for download:

Download Citation

    Suppressed Charge Dispersion via Resonant Tunneling in a Single-Channel Transmon

    A. Kringhøj1, B. van Heck2,3, T. W. Larsen1, O. Erlandsson1, D. Sabonis1, P. Krogstrup1,4, L. Casparis1, K. D. Petersson1, and C. M. Marcus1

    • 1Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
    • 2Microsoft Quantum, Station Q, University of California, Santa Barbara, California 93106-6105, USA
    • 3Microsoft Quantum Lab Delft, Delft University of Technology, 2600 GA Delft, The Netherlands
    • 4Microsoft Quantum Materials Lab Copenhagen, Kanalvej 7, 2800 Lyngby, Denmark

    PDF

    Phys. Rev. Lett. 124, 246803 – Published 19 June, 2020

    DOI: https://doi.org/10.1103/PhysRevLett.124.246803

    Abstract

    We demonstrate strong suppression of charge dispersion in a semiconductor-based transmon qubit across Josephson resonances associated with a quantum dot in the junction. On resonance, dispersion is drastically reduced compared to conventional transmons with corresponding Josephson and charging energies. We develop a model of qubit dispersion for a single-channel resonance, which is in quantitative agreement with experimental data.

    View figure in article

    Physics Subject Headings (PhySH)

    See Also

    Observation of Vanishing Charge Dispersion of a Nearly Open Superconducting Island

    Arno Bargerbos, Willemijn Uilhoorn, Chung-Kai Yang, Peter Krogstrup, Leo P. Kouwenhoven, Gijs de Lange, Bernard van Heck, and Angela Kou
    Phys. Rev. Lett. 124, 246802 (2020)

    Authorization Required

    We need you to provide your credentials before accessing this content.

    Other Options

    Supplemental Material (Subscription Required)

    References (Subscription Required)

    Outline

    Information

    Phys. Rev. Lett. 124, 246803– Published 19 June, 2020
    • Received 22 November 2019
    • Accepted 15 May 2020
    Crossmark - Check for updates button

    © 2020 American Physical Society

    Sign In to Your Journals Account

    Filter

    Filter

    Article Lookup

    Enter a citation