A Fast Tunable, Large Bandwidth Superconducting Microwave Switch

ORAL

Abstract

Fast controlled switches are a key feature in classical communication architectures, and likely will play an analogous role in quantum communication applications. Conventional semiconductor-based microwave switches have been used with superconducting quantum circuits, enabling for example the in-situ measurement of multiple devices via a common readout chain. However, theses switches dissipate energy when switched, making them unsuitable for applications requiring rapid, repeated switching. Josephson junction-based switches can be designed for dissipation-free operation with fast switching, and can be more readily integrated with superconducting quantum circuits, providing a very appealing alternative to semiconductor switches. Here, we present the design and characterization of a lossless single pole double throw (SPDT) superconducting switch based on tunable DC SQUIDs. The switch features fast switching times, large bandwidth, and a large on/off ratio. Applications for this device include coherent switch of itinerant photons for applications in quantum information, including quantum computation.

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Presenters

  • Hung-Shen Chang

    University of Chicago, Institute for Molecular Engineering, University of Chicago

Authors

  • Hung-Shen Chang

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Kevin Satzinger

    Physics, University of California, Santa Barbara, University of California, Santa Barbara, Department of Physics, University of California, Santa Barbara, Department of Physics, Univerity of California, Santa Barbara, UC Santa Barbara; University of Chicago, Google Inc - Santa Barbara

  • Youpeng Zhong

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Audrey Bienfait

    Institute for Molecular Engineering, University of Chicago, University of Chicago

  • Ming-Han Chou

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Christopher Conner

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Etienne Dumur

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Joel Grebel

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Gregory A Peairs

    University of Chicago, Physics, University of California, Santa Barbara, University of California, Santa Barbara, Department of Physics, University of California, Santa Barbara, Department of Physics, Univerity of California, Santa Barbara, UC Santa Barbara; University of Chicago

  • Rhys G Povey

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Andrew N Cleland

    University of Chicago, Institute for Molecular Engineering, University of Chicago