复杂网络中重新布线诱导的相干共振。

Coherence resonance induced by rewiring in complex networks.

作者信息

Jiang Mi, Ma Ping

机构信息

Department of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing, China.

出版信息

Chaos. 2009 Mar;19(1):013115. doi: 10.1063/1.3076398.

DOI:10.1063/1.3076398

PMID:19334979

Abstract

We report a novel coherent excitation phenomenon in a heterogeneous network of coupled FitzHugh-Nagumo elements. It is demonstrated that dynamical rewiring in the network can play a constructive role to bring on coherent excitations. The coherence factor as the function of rewiring time interval represents a nontrivial phenomenon which is a fingerprint of coherence resonance. We call this resonant behavior caused by dynamical wiring changes the network-rewiring-induced coherence resonance. The mechanism can be understood by the effective noise played by the rewiring process.

摘要

我们报告了一种在耦合FitzHugh-Nagumo元件的异质网络中的新型相干激发现象。结果表明，网络中的动态重新布线可以起到建设性作用，引发相干激发。作为重新布线时间间隔函数的相干因子代表了一种非平凡现象，这是相干共振的一个特征。我们将这种由动态布线变化引起的共振行为称为网络重新布线诱导的相干共振。该机制可以通过重新布线过程所起的有效噪声来理解。