Phase transitions in Nowak–Sznajd opinion dynamics

✍ Scribed by Maciej Wołoszyn; Dietrich Stauffer; Krzysztof Kułakowski

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 255 KB
• Volume: 378
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/j.physa.2006.12.005

✦ Synopsis

The Nowak modification of the Sznajd opinion dynamics model on the square lattice assumes that with probability b the opinions flip due to mass-media advertising from down to up, and vice versa. Besides, with probability a 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.