Local models of heterotic flux vacua: spacetime and worldsheet aspects

Abstract

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-Kähler 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.

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

References in corpus (3)

• Torsional Heterotic Geometries
• The effective action of the heterotic string compactified on manifolds with SU(3) structure
• Heterotic Resolved Conifolds with Torsion, from Supergravity to CFT

Cited by in corpus (3)

• Heterotic fluxes and supersymmetry
• T-Duality in Gauged Linear Sigma-Models with Torsion
• Heterotic flux backgrounds and their IIA duals