活性微丝的多同步性
Multisynchrony in active microfilaments
摘要：
生物微丝具有多种同步模式。最近的实验观察到，一对分离的真核生物鞭毛，仅通过流体介质耦合，显示同步在非平凡的相位滞后，除了同相和反相同步。使用弹性流体动力学细丝模型结合数值模拟和Floquet型理论分析，我们证明，它是可能的，通过改变细丝的内在活动和两个细丝之间的流体动力学耦合的强度，以达到多个同步状态。然后，我们推导出两个灯丝之间的相位差在弱耦合的演化方程，并使用Kuramoto风格的相位敏感性分析，揭示这些不同的同步状态之间的过渡的分叉的性质。
英文摘要：
Biological microfilaments exhibit a variety of synchronization modes. Recent experiments observed that a pair of isolated eukaryotic flagella, coupled solely via the fluid medium, display synchrony at nontrivial phase-lags in addition to in-phase and anti-phase synchrony. Using an elasto-hydrodynamic filament model in conjunction with numerical simulations and a Floquet-type theoretical analysis, we demonstrate that it is possible to reach multiple synchronization states by varying the intrinsic activity of the filament and the strength of hydrodynamic coupling between the two filaments. We then derive an evolution equation for the phase difference between the two filaments at weak-coupling, and use a Kuramoto-style phase sensitivity analysis to reveal the nature of the bifurcations underlying the transitions between these different synchronized states.
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