Rimer Oren, Ariel Gil
Department Of Mathematics, Bar Ilan University, Ramat-Gan, Israel.
Department Of Mathematics, Bar Ilan University, Ramat-Gan, Israel.
J Theor Biol. 2017 Apr 21;419:90-99. doi: 10.1016/j.jtbi.2017.02.009. Epub 2017 Feb 9.
A two dimensional model of self-propelled particles combining both a pause-and-go movement pattern and memory is studied in simulations. It is shown, that in contrast to previously studied agent based models in two-dimensions, order and disorder are metastable states that can co-exist at some parameter range. In particular, this implies that the formation and decay of global order in swarms may be kinetic rather than a phase transition. Our results explain metastability recently observed in swarming locust and fish.
在模拟中研究了一种结合暂停-行进运动模式和记忆的自推进粒子二维模型。结果表明，与之前在二维中研究的基于主体的模型不同，有序和无序是亚稳态，在某些参数范围内可以共存。特别地，这意味着群体中全局秩序的形成和衰减可能是动力学的，而不是相变。我们的结果解释了最近在蝗虫群和鱼群中观察到的亚稳态。
