Effects of Heterogeneous Social Interactions on Flocking Dynamics

Physical Review Letters
M Carmen MiguelRomualdo Pastor-Satorras

Abstract

Social relationships characterize the interactions that occur within social species and may have an important impact on collective animal motion. Here, we consider a variation of the standard Vicsek model for collective motion in which interactions are mediated by an empirically motivated scale-free topology that represents a heterogeneous pattern of social contacts. We observe that the degree of order of the model is strongly affected by network heterogeneity: more heterogeneous networks show a more resilient ordered state, while less heterogeneity leads to a more fragile ordered state that can be destroyed by sufficient external noise. Our results challenge the previously accepted equivalence between the static Vicsek model and the equilibrium XY model on the network of connections, and point towards a possible equivalence with models exhibiting a different symmetry.

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Citations

May 8, 2019·Nature Ecology & Evolution·Hangjian LingNicholas T Ouellette
Feb 1, 2020·Soft Matter·Berk YigitMetin Sitti
Sep 11, 2019·Physical Review. E·Trilochan Bagarti, Shakti N Menon
Feb 20, 2019·Physical Review. E·L L Bonilla, C Trenado
Oct 3, 2019·Physical Review. E·Haifeng DaiDonghua Zhao
Nov 28, 2019·Physical Review. E·M-Carmen Miguel, Romualdo Pastor-Satorras
Nov 21, 2020·Physical Review. E·Matthieu MangeatHeiko Rieger
May 1, 2021·Bioinspiration & Biomimetics·Jian Deng, Danshi Liu
Jul 13, 2021·Chaos·Pau Clusella, Romualdo Pastor-Satorras

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