...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Hydrodynamic synchronization of colloidal oscillators
【24h】

Hydrodynamic synchronization of colloidal oscillators

机译：胶体振荡器的流体动力学同步

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two colloidal spheres are maintained in oscillation by switching the position of an optical trap when a sphere reaches a limit position, leading to oscillations that are bounded in amplitude but free in phase and period. The interaction between the oscillators is only through the hydrodynamic flow induced by their motion. We prove that in the absence of stochastic noise the antiphase dynamical state is stable, and we show how the period depends on coupling strength. Both features are observed experimentally. As the natural frequencies of the oscillators are made progressively different, the coordination is quickly lost. These results help one to understand the origin of hydrodynamic synchronization and how the dynamics can be tuned. Cilia and flagella are biological systems coupled hydrody-namically, exhibiting dramatic collective motions. We propose that weakly correlated phase fluctuations, with one of the oscillators typically precessing the other, are characteristic of hydrodynami-cally coupled systems in the presence of thermal noise.
机译：当一个球到达极限位置时，通过切换光阱的位置，可以使两个胶体球保持振荡，从而导致振荡在幅度上有界，但在相位和周期上没有限制。振荡器之间的相互作用仅是通过它们的运动引起的流体动力流。我们证明了在没有随机噪声的情况下，反相动力学状态是稳定的，并且表明了周期如何取决于耦合强度。这两个功能都是通过实验观察到的。随着振荡器的固有频率逐渐变化，协调性很快消失。这些结果有助于人们了解水动力同步的起源以及如何调整动力学。纤毛和鞭毛是水动力耦合的生物系统，表现出剧烈的集体运动。我们提出，在存在热噪声的情况下，水动力耦合系统的特征是弱相关的相位波动，其中一个振荡器通常优先于另一个振荡器。

著录项

  • 来源
  • 作者

    Jurij Kotar; Marco Leoni; Bruno Bassetti; Marco Cosentino Lagomarsino; Pietro Cicuta;

  • 作者单位

    Cavendish Laboratory and Nanoscience Center, University of Cambridge, JJ Thomson Avenue, CB3 OHE Cambridge, United Kingdom;

    rnCavendish Laboratory and Nanoscience Center, University of Cambridge, JJ Thomson Avenue, CB3 OHE Cambridge, United Kingdom Dipartimento di Fisica and Istituto Nazionale di Fisica Nucleare, Universita degli Studi di Milano, sez. Milano, Via Celoria 16, 20100 Milan, Italy Department of Mathematics, University of Bristol, Bristol, BS8 1TW, United Kingdom;

    rnDipartimento di Fisica and Istituto Nazionale di Fisica Nucleare, Universita degli Studi di Milano, sez. Milano, Via Celoria 16, 20100 Milan, Italy;

    rnDipartimento di Fisica and Istituto Nazionale di Fisica Nucleare, Universita degli Studi di Milano, sez. Milano, Via Celoria 16, 20100 Milan, Italy Genomic Physics Group, FRE 3214 Centre National de la Recherche Scientifique 'Microorganism Genomics' and University Pierre et Marie Curie, 15, rue de l'Ecole de Medecine, Paris, France;

    rnCavendish Laboratory and Nanoscience Center, University of Cambridge, JJ Thomson Avenue, CB3 OHE Cambridge, United Kingdom;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    colloidal particles; hydrodynamic interaction; metachronal wave; optical tweezers; nonlinear dynamical system;

    机译：胶体颗粒;流体动力相互作用准时波光学镊子;非线性动力系统;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号