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Phonon heat transport in cavity-mediated optomechanical nanoresonators

Author

Listed:
  • Cheng Yang

    (State Key Laboratory of Precision Spectroscopy, East China Normal University)

  • Xinrui Wei

    (State Key Laboratory of Precision Spectroscopy, East China Normal University)

  • Jiteng Sheng

    (State Key Laboratory of Precision Spectroscopy, East China Normal University
    Collaborative Innovation Center of Extreme Optics, Shanxi University)

  • Haibin Wu

    (State Key Laboratory of Precision Spectroscopy, East China Normal University
    Collaborative Innovation Center of Extreme Optics, Shanxi University)

Abstract

The understanding of heat transport in nonequilibrium thermodynamics is an important research frontier, which is crucial for implementing novel thermodynamic devices, such as heat engines and refrigerators. The convection, conduction, and radiation are the well-known basic ways to transfer thermal energy. Here, we demonstrate a different mechanism of phonon heat transport between two spatially separated nanomechanical resonators coupled by the cavity-enhanced long-range interactions. The single trajectory for thermalization and non-equilibrium dynamics is monitored in real-time. In the strong coupling regime, the instant heat flux spontaneously oscillates back and forth in the nonequilibrium steady states. The universal bound on the precision of nonequilibrium steady-state heat flux, i.e. the thermodynamic uncertainty relation, is verified in such a temperature gradient driven far-off equilibrium system. Our results give more insight into the heat transfer with nanomechanical oscillators, and provide a playground for testing fundamental theories in non-equilibrium thermodynamics.

Suggested Citation

  • Cheng Yang & Xinrui Wei & Jiteng Sheng & Haibin Wu, 2020. "Phonon heat transport in cavity-mediated optomechanical nanoresonators," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18426-4
    DOI: 10.1038/s41467-020-18426-4
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    Cited by:

    1. Sarmah, Manash Jyoti & Bansal, Akanksha & Goswami, Himangshu Prabal, 2023. "Nonequilibrium fluctuations in boson transport through squeezed reservoirs," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 615(C).
    2. Sarmah, Manash Jyoti & Goswami, Himangshu Prabal, 2023. "Learning coherences from nonequilibrium fluctuations in a quantum heat engine," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 627(C).
    3. Zhujing Xu & Peng Ju & Xingyu Gao & Kunhong Shen & Zubin Jacob & Tongcang Li, 2022. "Observation and control of Casimir effects in a sphere-plate-sphere system," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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