Noise-driven synchronization of a FitzHugh–Nagumo ring with phase-repulsive coupling: A perspective from the system’s nonequilibrium potential

• Published in: Physica A Vol. 388; no. 6; pp. 967 - 976
• Main Authors: Izús, Gonzalo G., Sánchez, Alejandro D., Deza, Roberto R.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.03.2009
• Subjects: Complex systems; Nonequilibrium potential; Synchronization; 89.75.-k; Nonequilibrium potential; 87.18.Tt; Synchronization; Complex systems; 05.45.Xt

We study a one-dimensional array of N autonomous units with excitable FitzHugh–Nagumo dynamics coupled in phase-repulsive way to form a ring, and submitted to a common subthreshold harmonic signal and independent Gaussian white noises with a common intensity η . By varying η , two macroscopic regime...