The ghost of stochastic resonance: an introductory review

The ghost of stochastic resonance: an introductory review
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随机共振的幽灵:介绍性评论

DOI:
10.1080/00107514.2011.639605
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发表时间:
2012
影响因子:
2
通讯作者:
Chialvo
Chialvo
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Balenzuela;Chialvo

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由噪声和具有多个频率的周期性力驱动的非线性系统表现出鬼随机共振 (GSR) 现象,这种现象存在于从生物学到地球物理学的各种不同领域中。常见的新颖特征是系统输出中出现了输入中不存在的“幽灵”频率。正如本文所述,这种现象的发现有助于理解一系列问题,从复杂声音或视觉刺激中的音调感知,到气候循环的解释。最近的理论研究表明,在所有这些观察中,具有两种成分的简单机制正在发挥作用。第一个是周期性输入之间的线性干扰,第二个是最大相长干扰的非线性检测,涉及噪声阈值。这些笔记致力于回顾这种现象的主要方面,以及它在各种令人眼花缭乱的系统(从神经元、半导体激光器、电子电路到冰川气候循环模型)上描述的不同表现。
Nonlinear systems driven by noise and periodic forces with more than one frequency exhibit the phenomenon ofGhost Stochastic Resonance(GSR) found in a wide and disparate variety of fields ranging from biology to geophysics. The common novel feature is the emergence of a ‘ghost’ frequency in the system's output which is absent in the input. As reviewed here, the uncovering of this phenomenon helped to understand a range of problems, from the perception of pitch in complex sounds or visual stimuli, to the explanation of climate cycles. Recent theoretical efforts show that a simple mechanism with two ingredients are at work in all these observations. The first one is the linear interference between the periodic inputs and the second a nonlinear detection of the largest constructive interferences, involving a noisy threshold. These notes are dedicated to review the main aspects of this phenomenon, as well as its different manifestations described on a bewildering variety of systems ranging from neurons, semiconductor lasers, electronic circuits to models of glacial climate cycles.
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