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The existence of negative absolute temperatures in Axelrod’s social influence model

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  • Villegas-Febres, J.C.
  • Olivares-Rivas, W.

Abstract

We introduce the concept of temperature as an order parameter in the standard Axelrod’s social influence model. It is defined as the relation between suitably defined entropy and energy functions, T=(∂S/∂E)−1. We show that at the critical point, where the order/disorder transition occurs, this absolute temperature changes in sign. At this point, which corresponds to the transition homogeneous/heterogeneous culture, the entropy of the system shows a maximum. We discuss the relationship between the temperature and other properties of the model in terms of cultural traits.

Suggested Citation

  • Villegas-Febres, J.C. & Olivares-Rivas, W., 2008. "The existence of negative absolute temperatures in Axelrod’s social influence model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(14), pages 3701-3707.
  • Handle: RePEc:eee:phsmap:v:387:y:2008:i:14:p:3701-3707
    DOI: 10.1016/j.physa.2008.02.001
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    References listed on IDEAS

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    1. Ball, Philip, 2002. "The physical modelling of society: a historical perspective," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 314(1), pages 1-14.
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