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Published on: February 23, 2017
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Transitions between polarization and radicalization in a temporal bilayer echo-chamber model.
Łukasz G Gajewski1, Julian Sienkiewicz1, Janusz A Hołyst2
1Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland.
Physical Review. E
|March 16, 2022
Summary
This study explores opinion dynamics in bilayer echo chambers. Weak interlayer coupling maintains polarization, while strong coupling can lead to radicalization or oscillations, revealing complex polarization dynamics.
Area of Science:
- Complex systems
- Social physics
- Computational social science
Background:
- Echo chambers and polarization dynamics are increasingly significant in evolving societies.
- Understanding opinion dynamics in modern communication environments is crucial.
Purpose of the Study:
- To extend an activity-driven echo-chamber model to a bilayer topology.
- To investigate the dynamics of polarized states based on interlayer couplings.
Main Methods:
- Modeling opinion dynamics in a bilayer network with activity-driven agents.
- Analyzing unidirectional, symmetric, and nonsymmetric interlayer couplings.
- Utilizing mean-field approximation and bifurcation theory for analysis.
Main Results:
- A preconditioned polarized state can persist with weak interlayer coupling, even without homophily.
- Strong unidirectional or attractive coupling induces a discontinuous transition to radicalization when mean opinions align.
- Oppositely signed coupling constants lead to sustained or decaying oscillations.
Conclusions:
- The study demonstrates how interlayer coupling strength and sign critically influence polarization and radicalization in bilayer echo chambers.
- Bilayer topology introduces complex dynamics not present in monolayer models.
- Findings offer insights into opinion formation and societal polarization in interconnected environments.
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