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Route to noise-induced synchronization in an ensemble of uncoupled chaotic systems
Yan Wang1, Ying-Cheng Lai, Zhigang Zheng
1School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA.
Abstract:
We investigate the route to synchronization in an ensemble of uncoupled chaotic oscillators under common noise. Previous works have demonstrated that, as the common-noise amplitude is increased, both chaotic phase synchronization and complete synchronization can occur. Our study reveals an intermediate state of synchronization in between these two types of synchronization. A statistical measure is introduced to characterize this noise-induced synchronization state and the dynamical origin of the transition to it is elucidated based on the Lyapunov dimension of the set formed by all oscillator states.
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