Thermal self-synchronization of nano-objects

DOI PDF 被引用文献1件 参考文献46件
  • Zhongwei Zhang
    Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University 1 , 200092 Shanghai, People’s Republic of China
  • Yangyu Guo
    Institute of Industrial Science, The University of Tokyo 3 , Tokyo 153-8505, Japan
  • Marc Bescond
    Laboratory for Integrated Micro and Mechatronic Systems, CNRS-IIS UMI 2820, The University of Tokyo 4 , Tokyo 153-8505, Japan
  • Jie Chen
    Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University 1 , 200092 Shanghai, People’s Republic of China
  • Masahiro Nomura
    Institute of Industrial Science, The University of Tokyo 3 , Tokyo 153-8505, Japan
  • Sebastian Volz
    China-EU Joint Lab for Nanophononics, Tongji University 2 , 200092 Shanghai, People’s Republic of China

抄録

<jats:p>Self-synchronization is a ubiquitous phenomenon in nature, in which oscillators are collectively locked in frequency and phase through mutual interactions. While self-synchronization requires the forced excitation of at least one of the oscillators, we demonstrate that this mechanism spontaneously appears due to activation from thermal fluctuations. By performing molecular dynamics simulations, we demonstrate self-synchronization in a platform supporting doped silicon resonator nanopillars having different eigenfrequencies. We find that pillar’s vibrations are spontaneously converging to the same frequency and phase. In addition, the dependencies on the intrinsic frequency difference and the coupling strength agree well with the Kuramoto model predictions. More interestingly, we find that a balance between energy dissipation resulting from phonon–phonon scattering and potential energy between oscillators is reached to maintain synchronization. The balance could be suppressed by increasing the membrane size. While microscopic stochastic motions are known to follow random probability distributions, we finally prove that they can also yield coherent collective motions via self-synchronization.</jats:p>

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (46)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ