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arXiv 1503.07004nlin.AOnlin.CD
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对称性破缺对全局耦合振子网络的影响

Impact of symmetry breaking in networks of globally coupled oscillators

K. Premalatha, V. K. Chandrasekar, M. Senthilvelan, M. Lakshmanan

摘要:

我们分析了对称性破缺的后果,在全球耦合相同的斯图尔特-朗道振荡器的网络中的耦合。我们观察到对称性破缺导致振荡态动力学行为的无序性增加,从而导致丰富多样的动力学态。根据非等时性参数的大小,我们发现了振幅嵌合、振幅簇、频率嵌合和频率簇等多种动力学状态。此外,我们还发现了不同的过渡路线,最近观察到的嵌合体死亡状态的对称性破缺的存在下,即使与全球耦合。我们还分析验证了嵌合体的死亡区域,证实了数值结果。并将上述结果与对称性保持情况下的结果进行了比较。

英文摘要:

We analyze the consequences of symmetry breaking in the coupling in a network of globally coupled identical Stuart-Landau oscillators. We observe that symmetry breaking leads to increased disorderliness in the dynamical behavior of oscillatory states and consequently results in a rich variety of dynamical states. Depending on the strength of the nonisochronicity parameter, we find various dynamical states such as amplitude chimera, amplitude cluster, frequency chimera and frequency cluster states. In addition we also find disparate transition routes to recently observed chimera death state in the presence of symmetry breaking even with global coupling. We also analytically verify the chimera death region which corroborates the numerical results. The above results are compared with that of the symmetry preserving case as well.

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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