Local models of heterotic flux vacua: spacetime and worldsheet aspects

Details Local models of heterotic flux vacua: spacetime and worldsheet aspects Local models of heterotic flux vacua: spacetime and worldsheet aspects

2011-09-07

arxiv.org/abs/1109.1534v2

Fortschritte der Physik, Volume 59, Issue 7-8, pages 716--722, July 2011

Physics

High Energy Physics

High Energy Physics - Theory

Proceedings from a seminar given during the XVIth European Workshop on String Theory 2010, Madrid, 14--18 June 2010; v2:refs a

Scientific paper

10.1002/prop.201100018

We report on some recent progress in understanding heterotic flux compactifications, from a worldsheet perspective mainly. We consider local models consisting in torus fibration over warped Eguchi-Hanson space and non-K\"ahler resolved conifold geometries. We analyze the supergravity solutions and define a double-scaling limit of the resolved singularities, defined such that the geometry is smooth and weakly coupled. We show that, remarkably, the heterotic solutions admit solvable worldsheet CFT descriptions in this limit. This allows in particular to understand the important role of worldsheet non-perturbative effects.

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