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Phys Rev Lett. 2002 Jun 10;88(23):230602. Epub 2002 May 28.

Noise-induced phase synchronization and synchronization transitions in chaotic oscillators.

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  • 1Institute of Physics, University of Potsdam, PF 601553, 14415 Potsdam, Germany.


Whether common noise can induce complete synchronization in chaotic systems has been a topic of great relevance and long-standing controversy. We first clarify the mechanism of this phenomenon and show that the existence of a significant contraction region, where nearby trajectories converge, plays a decisive role. Second, we demonstrate that, more generally, common noise can induce phase synchronization in nonidentical chaotic systems. Such a noise-induced synchronization and synchronization transitions are of special significance for understanding neuron encoding in neurobiology.

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