Double Field Theory at SL(2) angles
Abstract
An extended field theory is presented that captures the full SL(2) x O(6,6+n) duality group of four-dimensional half-maximal supergravities. The theory has section constraints whose two inequivalent solutions correspond to minimal D=10 supergravity and chiral half-maximal D=6 supergravity, respectively coupled to vector and tensor multiplets. The relation with O(6,6+n) (heterotic) double field theory is thoroughly discussed. Non-Abelian interactions as well as background fluxes are captured by a deformation of the generalised diffeomorphisms. Finally, making use of the SL(2) duality structure, it is shown how to generate gaugings with non-trivial de Roo-Wagemans angles via generalised Scherk-Schwarz ansaetze. Such gaugings allow for moduli stabilisation including the SL(2) dilaton.
Cite
@article{arxiv.1612.05230,
title = {Double Field Theory at SL(2) angles},
author = {Franz Ciceri and Giuseppe Dibitetto and J. J. Fernandez-Melgarejo and Adolfo Guarino and Gianluca Inverso},
journal= {arXiv preprint arXiv:1612.05230},
year = {2017}
}
Comments
53 pages, 1 table