Simultaneous Operation of Co-fabricated Superconducting Qubits and Transition Edge Sensors

ORAL

Abstract

We present a system in which Transition Edge Sensors (TES) are co-fabricated in close proximity to transmon qubits on the same silicon substrate. The goal is to perform concurrent measurements of the TES devices and qubits, where the TES could serve a dual purpose: spectroscopic detection of cosmic background events and protection of qubits from those events via active energy removal.

In this talk, we discuss the technical challenges along this path. We review the fabrication processes and operational considerations necessary to maintain qubit coherence in the presence of TES integration. We then describe state-of-the-art protocols for simultaneous operation and calibration of TES devices and qubits. Finally, we discuss how the flavor of TES design and placement impacts the effectiveness of qubit protection.

 

*We gratefully acknowledge support from the QC-S5 LPS program through BAA# W911NF-22-S-0006, Topic NS5.

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Presenters

  • X. Y. Jin

    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA

Authors

  • X. Y. Jin

    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA

  • Eva Gurra

    • University of Colorado Boulder, Boulder, CO 80302, USA
    • University of Colorado Boulder

  • John B Mates

    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology Boulder

  • Shannon M Duff

    • National Institute of Standards and Technology (NIST)
    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology Boulder
    • NIST

  • Tony McFadden

    • National Institute of Standards and Technology Boulder
    • National Institute of Standards and Technology
    • National Institute of Standards and Technology, Boulder CO 80305
    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology (NIST)
    • University of California, Santa Barbara
    • National Institute of Standards and Technology, Boulder

  • Miranda Thompson

    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology Boulder

  • Zachary Parrott

    • University of Colorado Boulder, National Institute of Standards and Technology
    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • University of Colorado, Boulder
    • University of Colorado Boulder
    • University of Colorado Boulder, National Institute of Standards and Technology Boulder
    • NIST, Boulder

  • Florent Lecocq

    • National Institute of Standards and Technology, University of Colorado Boulder
    • National Institute of Standards and Technology
    • National Institute of Standards and Technology Boulder
    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology Boulder, University of Colorado Boulder

  • Dan Schmidt

    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology Boulder
    • NIST

  • Douglas A Bennett

    • National Institute of Standards and Technology (NIST)
    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA
    • National Institute of Standards and Technology Boulder
    • National Institute of Standards and Technology, Boulder

  • Joel N Ullom

    • National Institute of Standards and Technology Boulder
    • National Institute of Standards and Technology, Boulder, Colorado 80305, USA