Journée-séminaire de combinatoire

(équipe CALIN du LIPN, université Paris-Nord, Villetaneuse)

Le 01 décembre 2015 à 14h00 en B107, Yinon Spinka nous parlera de : Long-range order in lattice spin systems

Résumé : Lattice spin systems are used in statistical physics to model various magnetic materials. I will first introduce some well-known models in this field and give a short review of known results, with an emphasis on the phenomenon of long-range order. I will then discuss a result on the existence of long-range order for random 3-coloring of Z^d in high-dimensions (joint work with Ohad Feldheim). Finally, I will also discuss a result of long-range order for the loop O(n) model on the hexagonal lattice (joint work with Hugo Duminil-Copin, Ron Peled and Wojciech Samotij). No background in statistical physics will be assumed and all terms will be explained thoroughly.

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