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arXiv 1708.01883physics.soc-ph
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多重网络上整体序参量的弛豫时间:层间耦合在Kuramoto振子中的作用

Relaxation time of the global order parameter on multiplex networks: the role of interlayer coupling in Kuramoto oscillators

Alfonso Allen-Perkins, Thiago Albuquerque de Assis, Juan Manuel Pastor, Roberto F. S. Andrade

摘要:

本文研究了耦合仓本振子的全局序参量和层间同步的时间尺度。对于每层初始同步度较高的两层复用,从频谱分析和非线性Kuramoto模型两个不同的角度分析了每层平均相位之间的差异。这两种观点都证实了先前的时间尺度与层间耦合强度成反比。因此,增加层间耦合总是缩短全局序参量和层间同步的瞬态状态。令人惊讶的是,分析结果表明,全局序参量的收敛速度快于层间同步,而后者一般快于复用的全局同步。形式主义还概述了频率对每层的平均相位之间的差异的影响,并确定了振荡行为的条件。计算机模拟是在相当好的协议与分析结果,并揭示了全球序参量的时间尺度是至少一半的时间尺度小于多路复用。

英文摘要:

This work considers the timescales associated with the global order parameter and the interlayer synchronization of coupled Kuramoto oscillators on multiplexes. For the two-layer multiplexes with initially high degree of synchronization in each layer, the difference between the average phases in each layer is analyzed from two different perspectives: the spectral analysis and the non-linear Kuramoto model. Both viewpoints confirm that the prior timescales are inversely proportional to the interlayer coupling strength. Thus, increasing the interlayer coupling always shortens the transient regimes of both the global order parameter and the interlayer synchronization. Surprisingly, the analytical results show that the convergence of the global order parameter is faster than the interlayer synchronization, and the latter is generally faster than the global synchronization of the multiplex. The formalism also outlines the effects of frequencies on the difference between the average phases of each layer, and identifies the conditions for an oscillatory behavior. Computer simulations are in fairly good agreement with the analytical findings and reveal that the timescale of the global order parameter is at least half times smaller than timescale of the multiplex.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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