title: Geometric stochastic resonance.
abstract: A Brownian particle moving across a porous membrane subject to an oscillating force exhibits stochastic resonance with properties which strongly depend on the geometry of the confining cavities on the two sides of the membrane. Such a manifestation of stochastic resonance requires neither energetic nor entropic barriers, and can thus be regarded as a purely geometric effect. The magnitude of this effect is sensitive to the geometry of both the cavities and the pores, thus leading to distinctive optimal synchronization conditions.
authors.affiliation: Advanced Science Institute, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan.
authors.forename: Pulak Kumar
authors.initials: PK
authors.lastname: Ghosh
authors.forename: Fabio
authors.initials: F
authors.lastname: Marchesoni
authors.forename: Sergey E
authors.initials: SE
authors.lastname: Savel'ev
authors.forename: Franco
authors.initials: F
authors.lastname: Nori