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Nongeometric fluxes as supergravity backgrounds

Fernando Marchesano¹ and Waldemar Schulgin²

¹ASC, Ludwig-Maximilians-Universität, Theresienstraße 37, 80333 München, Germany
²Max Planck Institut für Physik, Föhringer Ring 6, 80805 München, Germany

Phys. Rev. D 76, 041901(R) – Published 30 August, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.041901

Abstract

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.

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References (34)

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Nongeometric fluxes as supergravity backgrounds

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