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Two-dimensional optomechanical crystal cavity with high quantum cooperativity

Author

Listed:
  • Hengjiang Ren

    (California Institute of Technology
    California Institute of Technology
    California Institute of Technology)

  • Matthew H. Matheny

    (California Institute of Technology
    California Institute of Technology
    California Institute of Technology)

  • Gregory S. MacCabe

    (California Institute of Technology
    California Institute of Technology
    California Institute of Technology)

  • Jie Luo

    (California Institute of Technology
    California Institute of Technology
    California Institute of Technology)

  • Hannes Pfeifer

    (Max Planck Institute for the Science of Light
    Universität Bonn)

  • Mohammad Mirhosseini

    (California Institute of Technology
    California Institute of Technology
    California Institute of Technology)

  • Oskar Painter

    (California Institute of Technology
    California Institute of Technology
    California Institute of Technology)

Abstract

Optomechanical systems offer new opportunities in quantum information processing and quantum sensing. Many solid-state quantum devices operate at millikelvin temperatures—however, it has proven challenging to operate nanoscale optomechanical devices at these ultralow temperatures due to their limited thermal conductance and parasitic optical absorption. Here, we present a two-dimensional optomechanical crystal resonator capable of achieving large cooperativity C and small effective bath occupancy nb, resulting in a quantum cooperativity Ceff ≡ C/nb > 1 under continuous-wave optical driving. This is realized using a two-dimensional phononic bandgap structure to host the optomechanical cavity, simultaneously isolating the acoustic mode of interest in the bandgap while allowing heat to be removed by phonon modes outside of the bandgap. This achievement paves the way for a variety of applications requiring quantum-coherent optomechanical interactions, such as transducers capable of bi-directional conversion of quantum states between microwave frequency superconducting quantum circuits and optical photons in a fiber optic network.

Suggested Citation

  • Hengjiang Ren & Matthew H. Matheny & Gregory S. MacCabe & Jie Luo & Hannes Pfeifer & Mohammad Mirhosseini & Oskar Painter, 2020. "Two-dimensional optomechanical crystal cavity with high quantum cooperativity," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17182-9
    DOI: 10.1038/s41467-020-17182-9
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    Cited by:

    1. Hengjiang Ren & Tirth Shah & Hannes Pfeifer & Christian Brendel & Vittorio Peano & Florian Marquardt & Oskar Painter, 2022. "Topological phonon transport in an optomechanical system," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. Shengyan Liu & Hao Tong & Kejie Fang, 2022. "Optomechanical crystal with bound states in the continuum," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Arjun Iyer & Yadav P. Kandel & Wendao Xu & John M. Nichol & William H. Renninger, 2024. "Coherent optical coupling to surface acoustic wave devices," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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