Colloquium Mathematics, Dr. Wouter Kager (VUA)

Join us for coffee and tea at 15.30 p.m.

Date:                          Tuesday, February 5^th 2013

Speaker:                     Dr. Wouter Kager (VUA)

Room:                         5161.0267 (Bernoulliborg)

Time:                           16.00

Title: Ising correlations via signed loops


Abstract:

The Ising model was introduced in the 1920's as a simple model to
explain properties of ferromagnets. For instance, a ferromagnet
spontaneously loses its magnetization when it is heated to a temperature
above the Curie point. The Ising model undergoes an analogous phase
transition, characterized in terms of its magnetic correlations. After
an introduction to the model, I will explain a geometric method for
studying these correlations, based on the combinatorics of signed loops.
This is joint work with Ronald Meester and Marcin Lis.

Colloquium coordinators are Prof.dr. A.C.D. van Enter (e-mail : A.C.D.van.Enter@rug.nl) and

Dr. A.V. Kiselev (e-mail: a.v.kiselev rug.nl)

http://www.rug.nl/wiskunde/nieuws/actueel/wiskundecolloquia