Phys. Rev. D 76, 041901(R) (2007) [5 pages]Nongeometric fluxes as supergravity backgrounds
We consider examples of D=4 string theory vacua which, although globally nongeometric, admit a local description in terms of D=10 supergravity backgrounds. We analyze such backgrounds and find that the supersymmetry spinors vary nontrivially along the internal manifold, reproducing the interpolating supergravity solutions found by Frey and Graña. Finally, we propose a simple, local expression for nongeometric fluxes in terms of the internal spinors of the compactification. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.041901
DOI:
10.1103/PhysRevD.76.041901
PACS:
11.25.Mj, 04.65.+e
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