Speaker
Mr
Eirik Eik Svanes
(University of Oxford)
Description
I will consider heterotic supergravity compactified to four dimensions at first order in alpha', commonly known as the Strominger System. I will show how the system can be put in terms of a generalised bundle over the base manifold. This bundle is holomorphic if and only if the Bianchi Identities for the curvatures and the NS-field-strength H are satisfied. I will consider infinitesimal deformations of this bundle, which correspond to infinitesimal moduli of the Strominger System. I will also discuss an ambiguity of a connection choice on the tangent bundle TX, relating to a freedom to redefine the fields. I will show how this ambiguity must be included as part of the moduli space of the system, in order for the mathematical structure to work out.
Authors
Mr
Eirik Eik Svanes
(University of Oxford)
Dr
Xenia de la Ossa
(University of Oxford)
