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Discontinuous phase transitions in the q-voter model with generalized anticonformity on random graphs

We study the binary q-voter model with generalized anticonformity on random Erdős–Rényi graphs. In such a model, two types of social responses, conformity and anticonformity, occur with complementary probabilities and the size of the source of influence [Formula: see text] in case of conformity is i...

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Detalles Bibliográficos
Autores principales: Abramiuk-Szurlej, Angelika, Lipiecki, Arkadiusz, Pawłowski, Jakub, Sznajd-Weron, Katarzyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8421341/
https://www.ncbi.nlm.nih.gov/pubmed/34489517
http://dx.doi.org/10.1038/s41598-021-97155-0
Descripción
Sumario:We study the binary q-voter model with generalized anticonformity on random Erdős–Rényi graphs. In such a model, two types of social responses, conformity and anticonformity, occur with complementary probabilities and the size of the source of influence [Formula: see text] in case of conformity is independent from the size of the source of influence [Formula: see text] in case of anticonformity. For [Formula: see text] the model reduces to the original q-voter model with anticonformity. Previously, such a generalized model was studied only on the complete graph, which corresponds to the mean-field approach. It was shown that it can display discontinuous phase transitions for [Formula: see text] , where [Formula: see text] for [Formula: see text] and [Formula: see text] for [Formula: see text] . In this paper, we pose the question if discontinuous phase transitions survive on random graphs with an average node degree [Formula: see text] observed empirically in social networks. Using the pair approximation, as well as Monte Carlo simulations, we show that discontinuous phase transitions indeed can survive, even for relatively small values of [Formula: see text] . Moreover, we show that for [Formula: see text] pair approximation results overlap the Monte Carlo ones. On the other hand, for [Formula: see text] pair approximation gives qualitatively wrong results indicating discontinuous phase transitions neither observed in the simulations nor within the mean-field approach. Finally, we report an intriguing result showing that the difference between the spinodals obtained within the pair approximation and the mean-field approach follows a power law with respect to [Formula: see text] , as long as the pair approximation indicates correctly the type of the phase transition.