Ideal Two-Mode Phase Sensitive Quantum Amplifier: Experiment

ORAL

Abstract

Josephson parametric amplifiers, although nearly quantum limited, typically operate in reflection and have a fixed gain-bandwidth product. Recently, there have been both theoretical and experimental efforts to address these shortcomings by combining multiple parametric processes within a single multimode device. In this presentation, we focus on using multiple parametric processes to couple two modes of a Josephson Parametric Converter. We will present data which uses paired, detuned gain processes as well as two separate methods of combining gain and photon conversion, all in the same physical device. All three schemes avoid the fixed gain-bandwidth product of a singly pumped JPC. We will examine their relative bandwidth, efficiency, and saturation power, as well as the prospects for adding further couplings to a third mode to generate directional amplification.

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Presenters

  • Olivia Lanes

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh

Authors

  • Olivia Lanes

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh

  • Tzu-Chiao Chien

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh

  • Xi Cao

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh

  • Gangqiang Liu

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh

  • Chenxu Liu

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh

  • David Pekker

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh

  • Anja Metelmann

    Physics, Freie Universitaet Berlin, Dahlem Center for Complex Quantum Systems and Department of Physics, Free University Berlin, Princeton University, Physics, Free University Berlin

  • Aashish Clerk

    Institute for Molecular Engineering, University Of Chicago, Molecular Engineering, Institute for Molecular Engineering at the University of Chicago, Institute for Molecular Engineering, University of Chicago, University of Chicago

  • Jose Aumentado

    NIST Boulder, Boulder, National Institute of Standards and Technology

  • Michael Hatridge

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh