Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-10-26
JHEP 0812:052,2008
Physics
High Energy Physics
High Energy Physics - Theory
59 pages, typos corrected
Scientific paper
10.1088/1126-6708/2008/12/052
We investigate the lifting of half-maximal four-dimensional gauged supergravities to compactifications of string theory. It is shown that a class of such supergravities can arise from compactifications of IIA string theory on manifolds of SU(2)-structure which may be thought of as K3 fibrations over T^2. Examples of these SU(2)-structure backgrounds, as smooth K3 bundles and as compactifications with H-flux, are given and we also find evidence for a class of non-geometric, Mirror-fold backgrounds. By applying the duality between IIA string theory on K3 and Heterotic string theory on T^4 fibrewise, we argue that these SU(2)-structure backgrounds are dual to Heterotic compactifications on a class T^4 fibrations over T^2. Examples of these fibrations as twisted tori, H-flux and T-fold compactifications are given. We also construct a new set of backgrounds, particular to Heterotic string theory, which includes a previously unknown class of Heterotic T-folds. A sigma model description of these backgrounds, from the Heterotic perspective, is presented in which we generalize the Bosonic doubled formalism to Heterotic string theory.
Reid-Edwards Ronald A.
Spanjaard Bastiaan
No associations
LandOfFree
N=4 Gauged Supergravity from Duality-Twist Compactifications of String Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with N=4 Gauged Supergravity from Duality-Twist Compactifications of String Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and N=4 Gauged Supergravity from Duality-Twist Compactifications of String Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-595462