Skip to content
High Energy Theory artwork
January 30, 20232:00 pm – 3:00 pm (CDT)

A Journey to the Center of the Field Space


Max Wiesner (Harvard University)



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

In this talk I will explore the interior of the field spaces of four-dimensional effective theories of gravity. In the first part of the talk I will discuss the notion of a moduli-dependent species scale in N=2 theories serving as an effective UV cutoff in gravitational theories. I will show that the one loop topological free energy F1 can be used as a measure for this moduli-dependent species scale by relating F1 to a gravitational version of the a-function. This relation allows us for a definition of the center of the moduli space as the point where F1 is minimized. In the second part of the talk I will then focus on gravitational theories with N=1 arising in F-theory compactifications. Using the spectrum of light BPS strings in these theories I will argue for the presence of novel strong coupling singularities in the interior of their scalar field space and will discuss the physics associated to them.

Copyright © 2023. All rights reserved, Texas A&M University Trademark | Texas A&M University, College Station, Texas 77843