Synchronization speed of identical oscillators on community networks |
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Authors: | Zhang Zhi Fu Zhong-Qian and Yan Gang |
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Institution: | Department of Electronic Science and Technology, University
of Science and Technology of China, Hefei 230026,
China |
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Abstract: | Synchronizability of complex oscillators networks has attracted much
research interest in recent years. In contrast, in this paper we
investigate numerically the synchronization speed, rather than the
synchronizability or synchronization stability, of identical
oscillators on complex networks with communities. A new weighted
community network model is employed here, in which the community
strength could be tunable by one parameter $\delta$. The results
showed that the synchronization speed of identical oscillators on
community networks could reach a maximal value when $\delta$ is
around Synchronizability of complex oscillators networks has attracted much
research interest in recent years. In contrast, in this paper we
investigate numerically the synchronization speed, rather than the
synchronizability or synchronization stability, of identical
oscillators on complex networks with communities. A new weighted
community network model is employed here, in which the community
strength could be tunable by one parameter $\delta$. The results
showed that the synchronization speed of identical oscillators on
community networks could reach a maximal value when $\delta$ is
around $0.1$. We argue that this is induced by the competition
between the community partition and the scale-free property of the
networks. Moreover, we have given the corresponding analysis through
the second least eigenvalue $\lambda_2$ of the Laplacian matrix of
the network which supports the previous result that the
synchronization speed is determined by the value of $\lambda_2$. |
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Keywords: | complex networks synchronization speed community |
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