Phase synchronization in coupled nonidentical excitable systems and array enhanced coherence resonance

Abstract

We study the dynamics of a lattice of coupled nonidentical Fitz Hugh-Nagumo system subject to independent external noise. It is shown that these stochastic oscillators can lead to global synchronization behavior {\sl without an external signal}. With the increase of the noise intensity, the system exhibits coherence resonance behavior. Coupling can enhance greatly the noise-induced coherence in the system.

4 pages with 3 figures, published in Phys. Rev. E 61, R1001 (2000)

References in corpus (1)

• Resonance between Noise and Delay

Cited by in corpus (17)

• System size resonance in coupled noisy systems and in the Ising model
• Coherence resonance in a network of FitzHugh-Nagumo systems: interplay of noise, time-delay and topology
• Dynamical mean-field theory of spiking neuron ensembles: response to a single spike with independent noises
• The effect of spatially correlated noise on coherence resonance in a network of excitable cells
• Control of coherence resonance by self-induced stochastic resonance in a multiplex neural network
• Explosive synchronization transitions in complex neural network
• Coherence resonance in neuronal populations: mean-field versus network model
• Autonomous stochastic resonance in fully frustrated Josephson-junction ladders
• Resonance and frequency-locking phenomena in spatially extended phytoplankton-zooplankton system with additive noise and periodic forces
• An augmented moment method for stochastic ensembles with delayed couplings: II. FitzHugh-Nagumo model
• Triggering synchronized oscillations through arbitrarily weak diversity in close-to-threshold excitable media
• Synchronization and enhanced catalysis of mechanically coupled enzymes
• A Causality-Based Learning Approach for Discovering the Underlying Dynamics of Complex Systems from Partial Observations with Stochastic Parameterization
• Dynamical behaviours in time-delay systems with delayed feedback and digitized coupling
• Collective dynamics of evanescently coupled excitable lasers with saturable absorber
• A geometric framework for phase synchronization in coupled noisy nonlinear systems
• Noise-Induced Burst and Spike Synchronizations in An Inhibitory Small-World Network of Subthreshold Bursting Neurons