Onset of dynamic activity in globally coupled excitable and oscillatory units
Onset of dynamic activity in globally coupled excitable and oscillatory units
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DOI：
10.1103/physreve.88.052907
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发表时间：
2013-11-11
影响因子：
2.4
通讯作者：
Nishio, Kazuho
中科院分区：
文献类型：
--
作者：
Daido, Hiroaki;Kasama, Akira;Nishio, Kazuho
在全局耦合单元的异质群体中研究动态活动的开始，使得每个单元根据其参数要么是可兴奋的要么是振荡的。通过改变参数分布的平均值以及耦合强度，我们表明所研究的全部或部分总体具有共同特征：相似的相图、动态活动附近或开始时的滞后现象，以及阶次参数遵循的分数幂律。提出了一个简化模型来解释这些结果。
The onset of dynamic activity is studied in heterogeneous populations of globally coupled units such that each unit is either excitable or oscillatory depending on its parameter. By varying the mean of the parameter distribution as well as coupling strength, we show that all or part of the populations studied have common features: similar phase diagrams, hysteresis near or at the onset of dynamic activity, and a fractional power law obeyed by an order parameter. A simplified model is proposed to explain these results.