Daniel Ueltschi, Warwick, UK: The Kac-Ward solution of the 2D Ising model
Overview
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10 Oct 2023, 13:1510 Oct 2023, 14:15
MV:L14, Chalmers tvärgata 3
Language:English
Onsager proposed a closed-form expression for the free energy of the Ising model in 1944. The method of Kac and Ward is particularly elegant and it has recently been made rigorous by Lis and Aizenman-Warzel. I will show how to extend it to the triangular lattice, with coupling constants of arbitrary signs.
This is ongoing work with Georgios Athanasopoulos.

Jakob Björnberg
- Head of Unit, Analysis and Probability Theory, Mathematical Sciences

Jakob Björnberg
- Head of Unit, Analysis and Probability Theory, Mathematical Sciences