Double stochastic resonance over an asymmetric barrier.
In a recent experiment [Müller, Phys. Rev. A 79, 031804(R) (2009)] reported a splitting of the stochastic resonance peak, which they attributed to the asymmetry of an effective double-well restoring potential in their optomechanical read-out device. We show here that such an effect, though smaller than reported, is indeed consistent with a characterization of stochastic resonance as a synchronization phenomenon, while it proves elusive in terms of spectral quantifiers.
Borromeo
M
M
Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy.
Marchesoni
F
F