https://doi.org/10.1140/epjb/e2009-00068-8
The role of bistability in stochastic resonance
1
Dipartimento di Fisica, Università di Perugia, 06123 Perugia, Italy
2
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, 06123 Perugia, Italy
3
Dipartimento di Fisica, Università di Camerino, 62032 Camerino, Italy
Corresponding author: a fabio.marchesoni@pg.infn.it
Received:
24
December
2008
Published online:
3
March
2009
We consider stochastic resonance in a continuous cyclostationary one dimensional process. For an appropriate choice of the control parameters (e.g., as the result of an underlying higher dimensional dynamics) the stationary probability density of the process may grow bimodal even in the absence of an energetic barrier: this is no sufficient condition for stochastic resonance to occur.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 02.50.Ey – Stochastic processes
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009
