Tunable 3D cQED: Implementation and Characterization

ORAL

Abstract

Significant progress has recently been made in improving the coherence of superconducting qubits by using the 3D cQED architecture. This current design is static, not allowing for the modulation of couplings and nonlinearities in situ. This limitation may prove to be an obstacle toward scaling this implementation into more complex systems. We present a new architecture which integrates high Q-factor 3D resonators with flux-tunable superconducting transmon qubits. In this talk, we will demonstrate full control over qubit frequency with minimal degradation to qubit and cavity lifetime. This capability allows the rapid and precise control over the system Hamiltonian to choose optimal couplings and nonlinearities as dictated by the experiment.

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Authors

  • Kevin Chou

    • Yale University Dept. of Applied Physics

  • Matthew Reed

    • Yale University
    • Yale University Dept. of Applied Physics

  • Nissim Ofek

    • Applied Physics Department, Yale University
    • Yale University Dept. of Applied Physics

  • Jacob Blumoff

    • Yale University Dept. of Applied Physics
    • Department of Physics and Applied Physics, Yale University

  • Brian Vlastakis

    • Applied Physics Department, Yale University
    • Yale University Dept. of Applied Physics

  • Gerhard Kirchmair

    • Applied Physics Department, Yale University
    • Yale University
    • Yale University Dept. of Applied Physics

  • Simon Nigg

    • Department of Physics, Yale University
    • Yale University
    • Yale University Dept. of Physics

  • Luigi Frunzio

    • Applied Physics Department, Yale University
    • Yale University
    • Yale University Dept. of Applied Physics
    • Department of Physics and Applied Physics, Yale University

  • Steven Girvin

    • Yale University
    • Yale University Dept. of Physics

  • Robert Schoelkopf

    • Applied Physics Department, Yale University
    • Department of Applied Physics, Yale University
    • Yale University
    • Yale University Dept. of Applied Physics
    • Department of Physics and Applied Physics, Yale University