Lumped-element microwave resonant circuit with a dc SQUID

ORAL

Abstract

We have fabricated lumped-element microwave resonant circuits consisting of a dc SQUID shunted with a capacitor formed from superconducting layers. Adjusting the SQUID bias conditions changes its Josephson inductance, thus varying the resonant frequency. We discuss the possibility of time-domain monitoring of the oscillations in these circuits and their potential use in a new readout scheme for superconducting qubits.

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Authors

  • M.P. DeFeo

    • Syracuse University

  • C. Song

    • Syracuse University

  • T.W. Heitmann

    • Syracuse University

  • K. Yu

    • Syracuse University

  • B.L.T. Plourde

    • Syracuse University

  • R. McDermott

    • University of Wisconsin