Diffusion-induced bistability of driven nanomechanical resonators.
Diffusion-induced bistability of driven nanomechanical resonators.
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驱动纳米机械谐振器的扩散引起的双稳态。
DOI：
10.1103/physrevlett.106.227202
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发表时间：
2011
影响因子：
8.6
通讯作者：
M. Dykman
中科院分区：
文献类型：
--
作者：
J. Atalaya;A. Isacsson;M. Dykman
我们研究了由于吸收粒子的扩散而产生频率波动的纳米机械谐振器。通过惯性效应，扩散取决于振动幅值。我们发现，当扩散系数D足够大时，谐振腔对周期驱动的响应表现为双稳态。共存振动态的寿命随D的增加呈指数增长，并与分岔点附近的参数呈比例依赖关系。
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.