Non-geometric fluxes as supergravity backgrounds

by Fernando Marchesano (CERN)

Tuesday 25 Sept 2007, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

We consider examples of D=4 string theory vacua which, although globally non-geometric, admit a local description in terms of D=10 supergravity backgrounds. We analyze such backgrounds and find that the supersymmetry spinors vary non-trivially along the internal manifold, reproducing the interpolating supergravity solutions found by Frey and Grana. Finally, we propose an intuitive description of non-geometric fluxes in terms of the internal spinors of the compactification.