title: Synchronization of networked chaotic oscillators under external periodic driving.
abstract: The dynamical responses of a complex system to external perturbations are of both fundamental interest and practical significance. Here, by the model of networked chaotic oscillators, we investigate how the synchronization behavior of a complex network is influenced by an externally added periodic driving. Interestingly, it is found that by a slight change of the properties of the external driving, e.g., the frequency or phase lag between its intrinsic oscillation and external driving, the network synchronizability could be significantly modified. We demonstrate this phenomenon by different network models and, based on the method of master stability function, give an analysis on the underlying mechanisms. Our studies highlight the importance of external perturbations on the collective behaviors of complex networks, and also provide an alternate approach for controlling network synchronization.
authors: Institute of Computational Physics and Complex Systems and Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University, Lanzhou, Gansu 730000, China.
authors: Wenchao
authors: W
authors: Yang
authors: School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China.|Department of Physics, Zhejiang University, Hangzhou 310027, China.
authors: Weijie
authors: W
authors: Lin
authors: School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China.
authors: Xingang
authors: X
authors: Wang
authors: Institute of Computational Physics and Complex Systems and Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University, Lanzhou, Gansu 730000, China.
authors: Liang
authors: L
authors: Huang