Review of Double Field Theory

by Dr Olaf HOHM

Thursday 7 Jul 2016, 14:30 → 15:30 Europe/Rome

2N44 (Dipartimento di Fisica)

I review Double Field Theory (DFT), in which the T-duality or O(d,d) invariance of a gravity action for string theory is made manifest by formulating the theory in terms of a generalized geometry defined on an doubled spacetime. I also review more recent work on the extension to include an arbitrary number of higher-derivative \alpha' corrections, which in DFT are constrained by generalized diffeomorphisms.