Charge-parity dynamics in offset-charge-sensitive transmons: Part 1

ORAL

Abstract

Understanding and mitigating the effects of nonequilibrium quasiparticle excitations is an important step towards improving the performance of superconducting qubits. By designing transmon qubits in the offset-charge-sensitive regime, one can achieve direct dispersive detection of quasiparticle tunneling events. We utilize these devices to measure quasiparticle tunneling rates as a function of various experimental parameters such as RF filtering and qubit design. This talk will focus on experimental methods.

*Work supported by: ARO, ONR, NSF, AFOSR, and YINQE

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Presenters

  • Spencer Diamond

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University

Authors

  • Spencer Diamond

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University

  • Kyle Serniak

    • Applied Physics, Yale University
    • Yale Univ
    • Department of Applied Physics, Yale University

  • Max Hays

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University

  • Valla Fatemi

    • Department of Physics, Massachusetts Institute of Technology
    • Massachusetts Institute of Technology
    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University

  • Gijs De Lange

    • Microsoft Quantum Delft
    • Yale Univ
    • Station Q Delft, Microsoft
    • Microsoft Station Q Delft, Delft University of Technology

  • Shyam Shankar

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University

  • Luigi Frunzio

    • Applied Physics, Yale University
    • Yale Univ
    • Yale University

  • Robert J Schoelkopf

    • Yale Univ
    • Yale University
    • Department of Applied Physics and Physics, Yale University
    • Applied Physics, Yale University

  • Leonid Glazman

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

  • Manuel Houzet

    • Univ. Grenoble Alpes, CEA, INAC-Pheliqs, Grenoble, France
    • CEA Grenoble

  • Michel H. Devoret

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University
    • Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA