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