Phase transition in Nowak-Sznajd opinion dynamics

Details Phase transition in Nowak-Sznajd opinion dynamics Phase transition in Nowak-Sznajd opinion dynamics

2006-09-21

arxiv.org/abs/physics/0609178v1

Physica A 378 (2007) 453

Physics

Physics and Society

8 pages draft for Physica A including all figures

Scientific paper

10.1016/j.physa.2006.12.005

The Nowak modification of the Sznajd opinion dynamics model on the square lattice assumes that with probabilities beta and gamma the opinions flip due to mass-media advertising from down to up, and vice versa. Besides, with probability alpha the Sznajd rule applies that a neighbour pair agreeing in its two opinions convinces all its six neighbours of that opinion. Our Monte Carlo simulations and mean-field theory find sharp phase transitions in the parameter space.

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