• Citer

Ensemble inequivalence in a XY model with long-range interactions

par de Buyl, Pierre ;Mukamel, David;Ruffo, Stefano
Référence AIP Conference Proceedings, 800, page (533-538)
Publication Publié, 2005-11

Article révisé par les pairs

• Détails
• Contenu

Résumé :

We introduce a new XY mean-field spin system whose canonical and microcanonical thermodynamics can be solved exactly. Microcanonical entropy is obtained by a novel use of large deviation techniques. The model desplays ensemble inequivalence and the presence of negative specific heat and temperature jumps in the microcanonical ensemble. © 2005 American Institute of Physics.