Título:
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Effects of heterogeneous social interactions on flocking dynamics
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Autor/a:
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Miguel López, María del Carmen; Parley, Jack T.; Pastor-Satorras, R. (Romualdo), 1967-
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Otros autores:
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Universitat de Barcelona |
Abstract:
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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. |
Materia(s):
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-Mecànica estadística -Transformacions de fase (Física estadística) -Sistemes complexos -Statistical mechanics -Phase transformations (Statistical physics) -Complex systems |
Derechos:
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(c) American Physical Society, 2018
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Physical Society
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