基于多路复用的随机共振控制
Multiplexing-based control of stochastic resonance
摘要：
我们表明，复用允许控制噪声引起的动态多层网络的随机共振制度。我们说明了这种效果的一个例子的两层和多层网络的过阻尼振荡器。特别是，我们证明了复用抑制随机共振的效果，如果周期性强迫是存在于只有一个层。相比之下，复用允许增强随机共振，如果周期性强迫和噪声存在于所有的相互作用层。在这种情况下，多路复用的影响具有共振特性：对于层之间的耦合强度的适当中间值，实现随机共振的最显著效果。此外，多路复用诱导的随机共振增强可以变得更加明显的耦合层的数量增加。为了可视化所揭示的现象，我们使用的信噪比的噪声强度的变化层之间的耦合强度的依赖性的演变。
英文摘要：
We show that multiplexing allows to control noise-induced dynamics of multilayer networks in the regime of stochastic resonance. We illustrate this effect on an example of two- and multi-layer networks of bistable overdamped oscillators. In particular, we demonstrate that multiplexing suppresses the effect of stochastic resonance, if the periodic forcing is present in only one layer. In contrast, the multiplexing allows to enhance the stochastic resonance, if the periodic forcing and noise are present in all the interacting layers. In such a case the impact of multiplexing has a resonant character: the most pronounced effect of stochastic resonance is achieved for an appropriate intermediate value of coupling strength between the layers. Moreover, multiplexing-induced enhancement of the stochastic resonance can become more pronounced for increasing number of coupled layers. To visualize the revealed phenomena, we use the evolution of the dependence of the signal-to-noise ratio on the noise intensity for varying strength of coupling between the layers.
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