title: Diffusion-induced bistability of driven nanomechanical resonators.
abstract: We study nanomechanical resonators with frequency fluctuations due to diffusion of absorbed particles. The diffusion depends on the vibration amplitude through inertial effect. We find that, if the diffusion coefficient D is sufficiently large, the resonator response to periodic driving displays bistability. The lifetime of the coexisting vibrational states exponentially increases with increasing D and displays a scaling dependence on the parameters close to bifurcation points.
authors.affiliation: Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden.
authors.forename: J
authors.initials: J
authors.lastname: Atalaya
authors.forename: A
authors.initials: A
authors.lastname: Isacsson
authors.forename: M I
authors.initials: MI
authors.lastname: Dykman