Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-05-16
Phys.Rev.D73:126011,2006
Physics
High Energy Physics
High Energy Physics - Theory
29 pages, no figures. References added and corrected. The discussion is minimaly changed and a subtle notational problem was c
Scientific paper
10.1103/PhysRevD.73.126011
It is found the most general local form of the 11-dimensional supergravity backgrounds which, by reduction along one isometry, give rise to IIA supergravity solutions with a RR field and a non trivial dilaton, and for which the condition $F^{(1,1)}=0$ holds. This condition is stronger than the usual condition $F^{ab}J_{ab}=0$, required by supersymmetry. It is shown that these D6 wrapped backgrounds arise from the direct sum of the flat Minkowski metric with certain G2 holonomy metrics admitting an U(1) action, with a local form found by Apostolov and Salamon. Indeed, the strong supersymmetry condition is equivalent to the statement that there is a new isometry on the G2 manifold, which commutes with the old one; therefore these metrics are inherently toric. An example that is asymptotically Calabi-Yau is presented. There are found another G2 metrics which give rise to half-flat SU(3) structures. All this examples possess an U(1)x U(1)x U(1) isometry subgroup. Supergravity solutions without fluxes corresponding to these G2 metrics are constructed. The presence of a $T^3$ subgroup of isometries permits to apply the \gamma-deformation technique in order to generate new supergravity solutions with fluxes.
No associations
LandOfFree
New G2 holonomy metrics, D6 branes with inherent U(1)xU(1) isometry and gamma-deformations 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 New G2 holonomy metrics, D6 branes with inherent U(1)xU(1) isometry and gamma-deformations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New G2 holonomy metrics, D6 branes with inherent U(1)xU(1) isometry and gamma-deformations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-490093