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Open Access item Phase-shifts in stochastic resonance in a Chua circuit

Authors:Korneta, Wojciech
Gomes, Iacyel
Mirasso, Claudio R.
Toral, Raúl
Keywords:Chaotic Dynamics, Stochastic resonance, Electronic Chua circuit, Switch-phase distribution, Phase-shifts, De-synchronization
Issue Date:14-Jan-2008
Abstract:We present an experimental study of stochastic resonance in an electronic Chua circuit operating in the chaotic regime. We study in detail the switch-phase distribution and the phase-shift between sinusoidal forcing for two responses of the circuit: one depending on both inter-well and intra-well dynamics and the other depending only on inter-well dynamics. We describe the two relevant de-synchronizatrion mechanisms for high and low frequencies of the forcing and present a method to detect the optimal noise intensity from switch phases which coincides with the one derived from the observation of the signal-to-noise ratio or residence times.
Description:PACS numbers: 05.40.-a,02.50.Ey.-- 5 pages, 9 figures.
Gov't Doc #:arXiv:0710.5353v1 [nlin.CD]
Appears in Collections:(IFISC) Artículos

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