arXiv subjects

A. Pluchino

Publications and source records attributed to A. Pluchino.

38 records · Page 3Linked to original sources

arXiv2005

Metastability and anomalous behavior in the HMF Model: connections to nonextensive thermodynamics and glassy dynamics

We review some of the most recent results on the dynamics of the Hamiltonian Mean Field (HMF) model, a systems of N planar spins with ferromagnetic infinite-range interactions. We show, in particular, how some of the dynamical anomalies of the model can be interpreted and characterized in terms of the weak-ergodicity breaking proposed in frameworks of glassy systems. We also discuss the connections with the nonextensive thermodynamics proposed by Tsallis.

cond-mat.stat-mech↗

arXiv2004

Changing Opinions in a Changing World: a New Perspective in Sociophysics

We propose a new model of opinion formation, the Opinion Changing Rate (OCR) model. Instead of investigating the conditions that allow consensus in a world of agents with different opinions, we study under which conditions a group of agents with a different natural tendency (rate) to change opinion can find agreement. The OCR is a modified version of the Kuramoto model, one of the simplest models for synchronization in biological systems, here adapted to a social context. By means of several numerical simulations we illustrate the richness of the OCR model dynamics and its social implications.

cond-mat.other↗