Better synchronizability predicted by a new coupling method

TL;DR

This paper introduces an asymmetrical coupling method based on node degrees that significantly improves the synchronizability of scale-free networks compared to existing methods.

Contribution

The paper proposes a novel degree-dependent asymmetrical coupling approach that enhances network synchronizability over traditional uniform and recent methods.

Findings

Enhanced synchronizability in scale-free networks

Outperforms uniform and Motter-Zhou-Kurth coupling methods

Effective control of network synchronization

Abstract

In this paper, inspired by the idea that the hub nodes of a highly heterogeneous network are not only the bottlenecks, but also effective controllers in the network synchronizing process, we bring forward an asymmetrical coupling method where the coupling strength of each node depends on its neighbors' degrees. Compared with the uniform coupled method and the recently proposed Motter-Zhou-Kurth method, the synchronizability of scale-free networks can be remarkably enhanced by using the present coupled method.