Physics Group Meeting

I will give introduction to general integrability-based methods to study two-dimensional quantum field theories. The goal (which I don't think I will achieve) is to explain how to compute the boundary entropy (also known as "g-function"), which quantifies the degrees of freedom associated with a boundary. Other topics that I'm planning to cover are: Factorization of S-matrices, Yang-Baxter equation and Thermodynamic Bethe Ansatz.References
General introduction to integrability:
Sections 1,2,3 in https://arxiv.org/abs/hep-th/9810026
Section 2.1 in https://arxiv.org/abs/1012.2475
O(N) and Gross-Neveu model S-matrices:
https://www.sciencedirect.com/science/article/pii/0003491679903919
Thermodynamic Bethe Ansatz:
Section 2.2 in https://arxiv.org/abs/1606.02951
g-function and g-theorem:
https://arxiv.org/abs/hep-th/0312197
https://arxiv.org/abs/1607.00390
g-function from TBA:
https://arxiv.org/abs/1003.5542
Diagrammatic derivation of g-function:
https://arxiv.org/abs/1809.05705