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Efficient microwave measurement of superconducting optomechanical circuits

ORAL

Abstract

Optomechanical interactions between electromagnetic modes and mechanical resonators have proven to be a valuable testbed for measurement and control of linear quantum systems. In this context, the light is considered as a meter that probes and influences the quantum state of the mechanical object. Reaching quantum limits of measurement and control therefore requires both that the optomechanical coupling overwhelms any decoherence and that the light is measured with sufficiently high efficiency. In microwave optomechanical systems, the first requirement has been demonstrated, but the second remains an experimental challenge, with state-of-art continuous linear measurements of microwave fields struggling to exceed 50% efficiency. Here I report recent progress to increase microwave measurement efficiencies to enable new regimes of ponderomotive squeezing and displacement sensing beyond the standard quantum limit.

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Presenters

  • Gabriel Peterson

    University of Colorado, Boulder, National Institute of Standards and Technology Boulder, Physics Measurement Lab, National Institute of Standards and Technology

Authors

  • Gabriel Peterson

    University of Colorado, Boulder, National Institute of Standards and Technology Boulder, Physics Measurement Lab, National Institute of Standards and Technology

  • Shlomi Kotler

    National Institute of Standards and Technology Boulder, National Institute of Standards and Technology, Physics Measurement Lab, National Institute of Standards and Technology

  • Florent Lecocq

    National Institute of Standards and Technology, National Institute of Standards and Technology Boulder, Physics Measurement Lab, National Institute of Standards and Technology

  • Katarina Cicak

    National Institute of Standards and Technology, National Institute of Standards and Technology Boulder, Physics Measurement Lab, National Institute of Standards and Technology

  • X. Y. Jin

    National Institute of Standards and Technology, National Institute of Standards and Technology Boulder

  • Raymond W Simmonds

    National Institute of Standards and Technology Boulder, National Institute of Standards and Technology, Physics Measurement Lab, National Institute of Standards and Technology

  • Jose Aumentado

    National Institute of Standards and Technology Boulder, National Institute of Standards and Technology, Physics Measurement Lab, National Institute of Standards and Technology

  • John Teufel

    National Institute of Standards and Technology Boulder, National Institute of Standards and Technology, Physics Measurement Lab, National Institute of Standards and Technology