Speaker
Description
α'-corrections appear as higher-derivative correction in the low-energy effective action of string theory and at the same time as loop-corrections in two dimensional σ-models. Despite their importance, we just start to understand their effects on integrability and dualities in string theory. While generalized geometry has been proven central to analyse both at the leading order, a full set of comparable tools is missing for α'-corrections. Currently the most advance approach is the generalized Bergshoeff-de Roo identification (gBdRi) but it is lacking a geometric interpretation which so far has been crucial to understand integrable string models and the web of dualities connecting them. I my talk I will rectify this situation by showing that the gBdRi can be derived from a suitable extension of the Cartan Geometry, which unifies all generalized dualities and their underlying gauged E-models as homogeneous spaces in generalized geometry.
