arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.07718nlin.AOnlin.CD
收藏

高次谐波全局耦合相位振荡器的低维动力学

Low-Dimensional Dynamics for Higher Order Harmonic Globally Coupled Phase Oscillator Ensemble

Chen Chris Gong, Arkady Pikovsky

摘要:

仓本模型,尽管它的流行作为一个平均场论的许多同步现象的振荡系统,是有限的相位的一阶谐波耦合。对于高阶耦合,在热力学极限下只存在一个低维理论。在本文中,我们扩展了Watanabe和Strogatz所使用的公式,以获得一个低维描述的任意大小的全同振子耦合所有到所有通过其高阶模式。为了证明该公式的应用,我们使用二次谐波全局耦合模型,平均场等于仓本平均场的平方。这个模型是已知的,表现出不对称的聚类在以前的数值研究。我们试图解释的现象,不对称的集群使用这里开发的分析理论,以及讨论某些现象没有观察到的一阶谐波耦合的水平。

英文摘要:

The Kuramoto model, despite its popularity as a mean-field theory for many synchronization phenomenon of oscillatory systems, is limited to a first-order harmonic coupling of phases. For higher-order coupling, there only exists a low-dimensional theory in the thermodynamic limit. In this paper, we extend the formulation used by Watanabe and Strogatz to obtain a low-dimensional description of a system of arbitrary size of identical oscillators coupled all-to-all via their higher-order modes. To demonstrate an application of the formulation, we use a second harmonic globally coupled model, with a mean-field equal to the square of the Kuramoto mean-field. This model is known to exhibit asymmetrical clustering in previous numerical studies. We try to explain the phenomenon of asymmetrical clustering using the analytical theory developed here, as well as discuss certain phenomena not observed at the level of first-order harmonic coupling.

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。

↑