Lever-assisted two-noise stochastic resonance.
A critical interplay of two correlated noises in a nonlinear symmetrical two-well potential system is experimentally demonstrated. One state can become completely noise free, leading to an infinite Kramers time. If an independent lever breaks the potential symmetry, stochastic resonance is recovered. In this new regime, we obtain a plateau, i.e., a high signal-to-noise ratio even for vanishing forcing signals.
Singh
K P
KP
Laboratoire d'Electronique Quantique-Physique des Lasers, UMR CNRS PALMS 6627, Université de Rennes I, Campus de Beaulieu, F-35042 Rennes CEDEX, France.
Ropars
G
G
Brunel
M
M
Le Floch
A
A
D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted; D013269:Stochastic Processes