Topologically inequivalent orbits induced by noise.
In this Letter we extend the concept of stochastic resonance. We show that in forced excitable systems noise can be responsible for the appearance of recurrences presenting a robust topological organization inequivalent to the periodic orbits of the deterministic system. As in stochastic resonance, these new structures are most pronounced at an optimal noise intensity.
Mendez
Jorge M
JM
Departamento de Física, FCEN, UBA, Ciudad Universitaria, Pabellón I (1428), Buenos Aires, Argentina.
Aliaga
J
J
Mindlin
G B
GB
D008962:Models, Theoretical; D009474:Neurons / Q000502:physiology; D010507:Periodicity; D013269:Stochastic Processes