2017/07/31 by Olaf Hohm, Edvard T. Musaev, Henning Samtleben · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1007/jhep10(2017)086
published as H. J. High Energ. Phys. (2017) 2017: 86 · 33 pages plus Appendix
arxiv created 2017/10/17 · arxiv updated 2017/10/18
Double field theory yields a formulation of the low-energy effective action of bosonic string theory and half-maximal supergravities that is covariant under the T-duality group O(d,d) emerging on a torus Td. Upon reduction to three spacetime dimensions and dualisation of vector fields into scalars, the symmetry group is enhanced to O(d+1,d+1). We construct an enhanced double field theory with internal coordinates in the adjoint representation of O(d+1,d+1). Its section constraints admit two inequivalent solutions, encoding in particular the embedding of D=6 chiral and non-chiral theories, respectively. As an application we define consistent generalized Scherk-Schwarz reductions using a novel notion of generalized parallelization. This allows us to prove the consistency of the truncations of D=6, \cal N=(1,1) and D=6, \cal N=(2,0) supergravity on AdS3× \mathbbS3.