集体运动由于逃避和追求的反应
Collective Motion due to escape and pursuit response
摘要：
最近的研究表明，非合作行为，如同类相食，也可能是集体运动的驱动机制。受这些新结果的启发，我们引入了一个简单的布朗粒子相互作用的追逐和逃逸相互作用模型。我们表明集体运动的发病，由于逃避和追求个人的反应，并证明如何实验访问宏观观测强烈依赖于逃避和追求强度的比例。我们分析了逃逸和追踪响应对运动统计的不同影响，并确定了迁移速度与模型参数的比例关系。
英文摘要：
Recent studies suggest that non-cooperative behavior such as cannibalism may also be a driving mechanism of collective motion. Motivated by these novel results we introduce a simple model of Brownian particles interacting by pursuit and escape interactions. We show the onset of collective motion due to escape and pursuit response of individuals and demonstrate how experimentally accessible macroscopic observables depend strongly on the ratio of the escape and pursuit strength. We analyze the different impact of the escape and pursuit response on the motion statistics and determine the scaling of the migration speed with model parameters.
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