arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.07182nlin.AOnlin.PS
收藏

异质Kuramoto模型中的类嵌合体行为:吸引和排斥耦合之间的相互作用

Chimera-like behavior in a heterogeneous Kuramoto model: the interplay between the attractive and repulsive coupling

Nikita Frolov, Vladimir Maksimenko, Soumen Majhi, Sarbendu Rakshit, Dibakar Ghosh, Alexander Hramov

摘要:

耦合非线性振子系综内的相互作用诱导了各种集体行为。其中最吸引人的是嵌合体状态,它表现出空间上不同的相干和不相干元素的共存。在受控实验或真实系统中的涌现嵌合体行为的理解需要关注异构网络模型的考虑。在这项研究中,我们探讨了在单调增加的耦合强度下的异质Kuramoto模型的过渡,特别是发现这个系统表现出频率调制的嵌合体的模式,在爆炸过渡到同步。我们证明,这种特定的动力学制度起源于(进化)吸引和排斥耦合的亚群之间的相互作用。我们还表明,上述嵌合体状态下诱导弱非局域,小世界和稀疏的无标度耦合和抑制全球耦合,强烈rewired和密集的无标度网络由于大规模连接的出现。

英文摘要:

Interaction within an ensemble of coupled nonlinear oscillators induces a variety of collective behaviors. One of the most fascinating is a chimera state which manifests the coexistence of spatially distinct populations of coherent and incoherent elements. Understanding of the emergent chimera behavior in controlled experiments or real systems requires a focus on the consideration of heterogeneous network models. In this study, we explore the transitions in a heterogeneous Kuramoto model under the monotonical increase of the coupling strength and specifically find that this system exhibits a frequency-modulated chimera-like pattern during the explosive transition to synchronization. We demonstrate that this specific dynamical regime originates from the interplay between (the evolved) attractively and repulsively coupled subpopulations. We also show that the above mentioned chimera-like state is induced under weakly non-local, small-world and sparse scale-free coupling and suppressed in globally coupled, strongly rewired and dense scale-free networks due to the emergence of the large-scale connections.

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。

↑