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Updated: Aug 23, 2026

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
Published on: December 15, 2021
Experimental evidence of coexisting periodic stochastic resonance and coherence resonance phenomena
Gerardo J Escalera Santos1, M Rivera, P Parmananda
1Facultad de Ciencias, UAEM, Avenida Universidad 1001, Colonia Chamilpa, Cuernavaca, Morelos, Mexico.
Abstract:
We report evidence of coexisting period stochastic resonance (PSR) and coherence resonance (CR) phenomena in an electrochemical cell. The anodic voltage (V) in the cell is chosen such that the anodic current (I) exhibits excitable fixed point behavior. Subsequently, the anodic voltage is modulated by an external perturbation that is a composite of a subthreshold periodic pulse signal and Gaussian white noise (GWN). As the amplitude of the GWN is increased, the regularity of the invoked dynamics is analyzed using normalized variance curve. The calculated resonance curve shows a double minima, implying the existence of two optimum noise levels where enhanced regularity of the induced spike sequence is detected. Numerical simulations corroborate experimental findings.
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