非均匀噪声幅值下的有效随机共振
Effective Stochastic Resonance under Heterogeneous Amplitude of Noise
摘要：
利用耦合双粒子模型对有效随机共振（SR）进行了数值和解析研究，粒子依赖性，噪声幅度。与先前的单粒子SR模型和暴露于等效噪声振幅的耦合的两个粒子的SR模型相比，本模型表现出更强烈的共振，至少一个粒子暴露于非更大振幅的噪声与另一个粒子的协助。在一定的条件范围内，一个粒子的这种有效共振抵消了另一个粒子的不良共振，这意味着噪声的非均匀振幅不仅局部地而且在整体的平均中将系统引导到有效SR。
英文摘要：
Effective stochastic resonance (SR) is numerically and analytically studied using a model with coupled two particles exposed to heterogeneous, i.e., particles dependent, amplitude of noise. Compared to previous SR models of single particle and to those of coupled two particles exposed to equivalent amplitude of noise, the present model exhibits a more intensive resonance of, at least, one particle exposed to the non-larger amplitude of noise with the assistance of another particle. In a certain range of conditions, this effective resonance of one particle overwhelms the poor resonance of the other particle, meaning that heterogeneous amplitude of noise leads the system, not only locally but also in the average of the whole, to the effective SR.
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