N=1/2 domain walls and Yang-Mills instantons in heterotic supergravity

by Mr Alexander Haupt (Hamburg University)

Thursday 18 Jun 2015, 14:15 → 15:15 Europe/Berlin

Seminar Room 2 (DESY, building 2a)

The talk will begin with a brief advert for a class of Calabi-Yau 4-folds, which we classified recently and which are potentially interesting for F-theory. In the remainder, I will discuss a certain construction of higher-dimensional Yang-Mills instantons on G-structure manifolds and how they arise in solutions of heterotic supergravity in the presence of first order \alpha' corrections. These solutions correspond to N=1/2 domain walls from a four-dimensional point of view.