- 量子场与弦论组讨论班

3d TFTs and boundary VOAs from BPS spectra of Argyres-Douglas theories

组织者

路易斯·阿波罗 , 崔嵬 , 李淇明 , 安东·普里比托克

演讲者

Minsung Kim

时间

2026年05月21日 14:00 至 15:30

地点

A7-302

线上

Zoom 388 528 9728 (BIMSA)

摘要

The Schur operators of 4d N=2 SCFTs form a 2d vertex operator algebra (VOA). Recently, it has been proposed that this 4d SCFT/2d VOA correspondence can be understood via topologically twisted 3d N=4 SCFTs obtained by the twisted circle compactification of the 4d theories. The 2d VOAs are supported on the holomorphic boundary of the topologically twisted sector. In this talk, we discuss a systematic and efficient method for constructing these 3d topological field theories (TFTs) using the BPS spectra and wall-crossing invariants of the 4d theories, focusing on Argyres-Douglas theories. This establishes a useful computational bridge between 4d SCFTs and 2d VOAs via the interpolating 3d TFTs.