Bi Hongjie, Fukai Tomoki
Okinawa Institute of Science and Technology, Onna-son, Okinawa 904-0495, Japan.
Chaos. 2022 Aug;32(8):083125. doi: 10.1063/5.0096284.
Chimera states achieve the coexistence of coherent and incoherent subgroups through symmetry breaking and emerge in physical, chemical, and biological systems. We show the presence of amplitude-mediated multicluster chimera states in nonlocally coupled Stuart-Landau oscillators. We clarify the prerequisites for having different types of chimera states by analytically and numerically studying how phase transitions occur between these states. Our results demonstrate how the oscillation amplitudes interact with the phase degrees of freedom in chimera states and significantly advance our understanding of the generation mechanisms of such states in coupled oscillator systems.
嵌合态通过对称性破缺实现相干和非相干子群的共存，并出现在物理、化学和生物系统中。我们展示了在非局部耦合的斯图尔特 - 朗道振荡器中存在振幅介导的多簇嵌合态。通过分析和数值研究这些态之间的相变如何发生，我们阐明了出现不同类型嵌合态的先决条件。我们的结果展示了振荡振幅在嵌合态中如何与相位自由度相互作用，并显著推进了我们对耦合振荡器系统中此类态产生机制的理解。
