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.

*Supported by ARL W911NF-15-2-0058, DOE Office of Basic Energy Sciences, AFOSR MURI FA9550-15-1-0029, UChicago MRSEC (NSF DMR-1420709), and UChicago PNF SHyNE NNCI (NSF ECCS-1542205)

–

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