Who’s Talking First? Consensus or Lack Thereof in Coevolving Opinion Formation Models

Cecilia Nardini, Balázs Kozma, and Alain Barrat
Phys. Rev. Lett. 100, 158701 – Published 18 April 2008


We investigate different opinion formation models on adaptive network topologies. Depending on the dynamical process, rewiring can either (i) lead to the elimination of interactions between agents in different states, and accelerate the convergence to a consensus state or break the network in noninteracting groups or (ii), counterintuitively, favor the existence of diverse interacting groups for exponentially long times. The mean-field analysis allows us to elucidate the mechanisms at play. Strikingly, allowing the interacting agents to bear more than one opinion at the same time drastically changes the model’s behavior and leads to fast consensus.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 8 November 2007


©2008 American Physical Society

Authors & Affiliations

Cecilia Nardini1,2, Balázs Kozma1, and Alain Barrat1,3

  • 1LPT, CNRS, UMR 8627, and Univ Paris-Sud, Orsay, F-91405 (France)
  • 2Universitá di Padova, dipartimento di Fisica “G. Galilei” (Italy)
  • 3Complex Networks Lagrange Laboratory, ISI Foundation, Turin, Italy

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Vol. 100, Iss. 15 — 18 April 2008

Reuse & Permissions

1923: Compton shows light’s particle nature
View timeline|#PhysRev125
Access Options
Information on SCOAP3 and Physical Review journals
January 3, 2018

High Energy Physics (HEP) papers published after January 1, 2018 in Physical Review Letters, Physical Review C, and Physical Review D are published open access, paid for centrally by SCOAP3. Library subscriptions will be modified accordingly. This arrangement will initially last for two years, up to the end of 2019.

Authorization Required




Sign up to receive regular email alerts from Physical Review Letters

Log In



Article Lookup

Paste a citation or DOI

Enter a citation