Speaker
Aninda Sinha
Description
I will review the stringy dispersion relation and use it to study gravitational EFTs at low impact parameter. In particular, we will find that there is a remarkable organizational spectral structure that shows up at low impact parameter for a wide class of S-matrices. After feeding in the Eikonal support, we find Regge-like structures as well as black-hole-like unitarity capped support that respect the Giddings-Porto black hole support curves. However, due to the capping, it is unclear if the support structures favour black-holes over fuzzballs or more exotic stars.