Speaker
Johanna Knapp
Description
The mathematics of Calabi-Yau spaces plays a crucial role in the
context of string compactifications. In this talk I discuss the gauged
linear sigma model (GLSM), which is a supersymmetric gauge theory in two
dimensions that encodes information about Calabi-Yaus and their moduli
spaces. After a basic introduction to GLSMs, I will discuss new methods
for computing quantum corrections in string compactifications using
supersymmetric localization. I will focus in particular on the hemisphere
partition function, which computes the quantum corrected central charge of
D-branes on Calabi-Yaus.
