论文标题

具有非限定相响应曲线的无绞合模型:Ott-Antonsen理论

The Winfree model with non-infinitesimal phase-response curve: Ott-Antonsen theory

论文作者

Pazó, Diego, Gallego, Rafael

论文摘要

分析研究了在有限耦合下代表相减少的全球​​耦合相振荡器的新型概括。与原始模型的无限PRC相比,我们考虑通过非限量(或有限)相位反应曲线(PRC)的相互作用。对于一个非临时PRC的家族,全局动力学是由一个复杂值的普通微分方程捕获的,该方程诉诸Ott-Antonsen Ansatz。因此,对于四个非限体PRC的说明性案例,获得了相图。在所有情况下,都可以观察到集体同步和完全去同步之间的双重性。

A novel generalization of the Winfree model of globally coupled phase oscillators, representing phase reduction under finite coupling, is studied analytically. We consider interactions through a non-infinitesimal (or finite) phase-response curve (PRC), in contrast to the infinitesimal PRC of the original model. For a family of non-infinitesimal PRCs, the global dynamics is captured by one complex-valued ordinary differential equation resorting to the Ott-Antonsen ansatz. The phase diagrams are thereupon obtained for four illustrative cases of non-infinitesimal PRC. Bistability between collective synchronization and full desynchronization is observed in all cases.

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