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Generating giant and tunable nonlinearity in a macroscopic mechanical resonator from a single chemical bond

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  • Pu Huang

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Jingwei Zhou

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

  • Liang Zhang

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

  • Dong Hou

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Shaochun Lin

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Wen Deng

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    High Magnetic Field Laboratory, Chinese Academy of Science)

  • Chao Meng

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

  • Changkui Duan

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China)

  • Chenyong Ju

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Xiao Zheng

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Fei Xue

    (High Magnetic Field Laboratory, Chinese Academy of Science)

  • Jiangfeng Du

    (National Laboratory for Physics Sciences at the Microscale, University of Science and Technology of China
    University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

Abstract

Nonlinearity in macroscopic mechanical systems may lead to abundant phenomena for fundamental studies and potential applications. However, it is difficult to generate nonlinearity due to the fact that macroscopic mechanical systems follow Hooke’s law and respond linearly to external force, unless strong drive is used. Here we propose and experimentally realize high cubic nonlinear response in a macroscopic mechanical system by exploring the anharmonicity in chemical bonding interactions. We demonstrate the high tunability of nonlinear response by precisely controlling the chemical bonding interaction, and realize, at the single-bond limit, a cubic elastic constant of 1 × 1020 N m−3. This enables us to observe the resonator’s vibrational bi-states transitions driven by the weak Brownian thermal noise at 6 K. This method can be flexibly applied to a variety of mechanical systems to improve nonlinear responses, and can be used, with further improvements, to explore macroscopic quantum mechanics.

Suggested Citation

  • Pu Huang & Jingwei Zhou & Liang Zhang & Dong Hou & Shaochun Lin & Wen Deng & Chao Meng & Changkui Duan & Chenyong Ju & Xiao Zheng & Fei Xue & Jiangfeng Du, 2016. "Generating giant and tunable nonlinearity in a macroscopic mechanical resonator from a single chemical bond," Nature Communications, Nature, vol. 7(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11517
    DOI: 10.1038/ncomms11517
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