Heterotic Models without Fivebranes
arXiv:hep-th/0611309 · doi:10.1016/j.geomphys.2007.06.001
Abstract
After discussing some general problems for heterotic compactifications involving fivebranes we construct bundles, built as extensions, over an elliptically fibered Calabi-Yau threefold. For these we show that it is possible to satisfy the anomaly cancellation topologically without any fivebranes. The search for a specific Standard model or GUT gauge group motivates the choice of an Enriques surface or certain other surfaces as base manifold. The burden of this construction is to show the stability of these bundles. Here we give an outline of the construction and its physical relevance. The mathematical details, in particular the proof that the bundles are stable in a specific region of the Kähler cone, are given in the mathematical companion paper math.AG/0611762.
18 pages; distorting typo in equ. (1.11) corrected; minor changes
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Cited by in corpus (6)
- Solutions of the Strominger System via Stable Bundles on Calabi-Yau Threefolds
- On heterotic model constraints
- Stable bundle extensions on elliptic Calabi-Yau threefolds
- New Heterotic Non-Kahler Geometries
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