Diffusion-induced bistability of driven nanomechanical resonators

Details Diffusion-induced bistability of driven nanomechanical resonators Diffusion-induced bistability of driven nanomechanical resonators

2011-03-14

arxiv.org/abs/1103.2758v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

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 is sufficiently large, the resonator response to periodic driving displays bistability. The lifetime of the coexisting vibrational states scales exponentially with the diffusion coefficient. It also displays a characteristic scaling dependence on the distance to bifurcation points.

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