Omel'chenko Oleh E, Maistrenko Yuri L, Tass Peter A
Institute of Neuroscience and Biophysics 3-Medicine, Research Center Jülich, 52425 Jülich, Germany.
Phys Rev Lett. 2008 Feb 1;100(4):044105. doi: 10.1103/PhysRevLett.100.044105. Epub 2008 Jan 31.
Chimera states are remarkable spatiotemporal patterns in which coherence coexists with incoherence. As yet, chimera states have been considered as nongeneric, since they emerge only for particular initial conditions. In contrast, we show here that in a network of globally coupled oscillators delayed feedback stimulation with realistic (i.e., spatially decaying) stimulation profile generically induces chimera states. Intriguingly, a bifurcation analysis reveals that these chimera states are the natural link between the coherent and the incoherent states.
嵌合态是一种显著的时空模式，其中相干性与非相干性共存。迄今为止，嵌合态一直被认为是非通用的，因为它们仅在特定的初始条件下出现。相比之下，我们在此表明，在一个全局耦合振荡器网络中，具有现实（即空间衰减）刺激分布的延迟反馈刺激通常会诱导出嵌合态。有趣的是，分岔分析表明，这些嵌合态是相干态和非相干态之间的自然联系。
