Joint Math/CMSA Geometry and Quantum Theory Seminar

Speaker: Keyou Zeng (CMSA)

Title: Line operators in holomorphic QFT

Abstract: We will discuss the recent work (arxiv:2508.11749), which defines the so called dg shifted Yangian. I will discuss their origin from the study of 3d holomorphic topological field theories, a variant of 3d TQFT. A dg shifted Yangian is supposed to control the fusion of line defect in the corresponding 3d HT theories. I will illustrate these discussions in examples.