Measurement of the phase non-reciprocity of the Josephson parametric converter

ORAL

Abstract

Non-reciprocal devices such as circulators and isolators play a pivotal role in many microwave experiments on quantum superconducting circuits. However, non-reciprocity in these devices is achieved using ferrites and permanent magnets which are not suitable for on chip integration. We have built a symmetric two port device by pairing two Josephson parametric converters (JPCs) working in pure conversion mode, each of which is driven with an independent pump tone. We observed a non-reciprocal phase shift between the two ports, which depends on the phase difference between the two pumps. The present noiseless system constitutes an important step towards the implementation of a noiseless gyrator, the main building block of an on-chip circulator for back-action free quantum measurement.

*Work supported by IARPA, ARO and NSF

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Authors

  • Baleegh Abdo

    • Applied Physics - Yale University
    • Yale University, Dept. of Applied Physics

  • Katrina Sliwa

    • Applied Physics Dept., Yale University
    • Applied Physics - Yale University
    • Yale University, Dept. of Applied Physics

  • Archana Kamal

    • Yale University, Applied Physics
    • Yale University
    • Departments of Physics and Applied Physics, Yale University
    • Applied Physics - Yale University

  • Flavius Schackert

    • Applied Physics - Yale University
    • Yale University, Dept. of Applied Physics

  • Michael Hatridge

    • Applied Physics Dept., Yale University
    • Applied Physics - Yale University
    • Yale University, Dept. of Applied Physics

  • Luigi Frunzio

    • Applied Physics Department, Yale University
    • Yale University
    • Department of Physics and Applied Physics, Yale University
    • Applied Physics Department Yale University
    • Applied Physics - Yale University
    • Yale University, Dept. of Applied Physics
    • Department of Applied Physics, Yale University

  • Michel Devoret

    • Yale University, Applied Physics
    • Yale University
    • Applied Physics Department Yale University
    • Department of Applied Physics, Yale University
    • Departments of Physics and Applied Physics, Yale University
    • Applied Physics - Yale University
    • Yale University, Dept. of Applied Physics
    • Applied Physics Dept. Yale University