Resurgence and strong-coupling dynamics in Quantum Field theory

Rudolfs将首先回顾一些关于在重规范问题和强耦合动力学的背景下应用于2d qft的复活分析的文献。从这里，Rudolfs将转向使用可积性研究wzw2d模型中的精确配分函数。一旦计算出这些可观测值，我们将执行弱耦合展开并获得完整的横列。由于这些模型将有一个边际变形，我们将分析当我们调整这种变形时Borel平面中的奇点发生了什么，这将为我们提供关于如何使用复苏理论来推断IR特性，特别是强耦合动力学或缺乏IR特性的有用信息。

Rudolfs will start by reviewing some of the literature on resurgent analysis applied to 2d qft in the context of the renormalons problem and strong-coupling dynamics. From here Rudolfs will move to the study of exact partition functions in WZW 2d models using integrability. Once these observables will be computed we will be performing a weak-coupling expansion and obtain the complete transseries. Since these models will have a marginal deformation we will analyse what happens to the singularities in the Borel plane as we tune this deformation, this will give us useful information on how to use resurgence theory to infer IR properties and in particular strong-coupling dynamics or lack thereof.