String Theory Seminars

An Effective Action for Infrared Divergences

by Dr. Prahar Mitra (Cambridge University, UK)

Wednesday, September 7, 2022 from to (Asia/Kolkata)
at Zoom ( A369 )
The S-matrix of non-confining gauge and gravitational theories in four dimensions (bulk) are plagued with infrared divergences. In this talk, I will construct an effective two-dimensional (boundary) action whose correlators exactly reproduce this infrared divergence structure exactly. We will then use this construction to define an S-matrix which is infrared finite.