Emergent behavioural phenotypes of swarming models revealed by mimicking a frustrated anti-ferromagnet
Emergent behavioural phenotypes of swarming models revealed by mimicking a frustrated anti-ferromagnet
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通过模仿受挫的反铁磁体揭示了集群模型的新兴行为表型
DOI：
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发表时间：
2014
影响因子：
3.9
通讯作者：
Matthew S. Turner
中科院分区：
文献类型：
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作者：
Daniel J. G. Pearce;Matthew S. Turner
自推进粒子（SPP）模型常被比作动物群。然而，在实验中观察到的集体动物行为往往在提出的模型结构中留下相当大的不受约束的自由。从本质上讲，多个模型可以描述在简单环境中观察到的动物群体行为。为了解决这种退化问题，我们研究了非平凡环境中的spp群，作为区分候选模型的新方法。我们将spp群限制在圆形（周期性）通道中，它们在两个方向中的一个方向上极化（如自旋），并允许信息通过相邻通道之间的窗口。粒子间的共对准使通道耦合（反铁磁），使它们倾向于反向旋转。我们研究了模拟几何受挫反铁磁体的通道，并展示了这种受挫的影响如何使我们更好地区分SPP模型。因此，类似的实验可以提高我们对动物集体运动的理解。最后，我们讨论了如何利用自旋类比来构建通用逻辑门，从而可以作为图灵机的群系统。
Self-propelled particle (SPP) models are often compared with animal swarms. However, the collective animal behaviour observed in experiments often leaves considerable unconstrained freedom in the structure of a proposed model. Essentially, multiple models can describe the observed behaviour of animal swarms in simple environments. To tackle this degeneracy, we study swarms of SPPs in non-trivial environments as a new approach to distinguish between candidate models. We restrict swarms of SPPs to circular (periodic) channels where they polarize in one of two directions (like spins) and permit information to pass through windows between neighbouring channels. Co-alignment between particles then couples the channels (anti-ferromagnetically) so that they tend to counter-rotate. We study channels arranged to mimic a geometrically frustrated anti-ferromagnet and show how the effects of this frustration allow us to better distinguish between SPP models. Similar experiments could therefore improve our understanding of collective motion in animals. Finally, we discuss how the spin analogy can be exploited to construct universal logic gates, and therefore swarming systems that can function as Turing machines.
影响因子：
2.4
作者：
Cavagna, Andrea;Giardina, Irene;Walczak, Aleksandra M.
通讯作者：
Walczak, Aleksandra M.
影响因子：
3.7
作者：
Andreanov, A.;Chalker, J. T.;Sherrington, D.
通讯作者：
Sherrington, D.