Building blocks for generalized heterotic/F-theory duality

Jonathan J. Heckman Harvard University Hai Lin Harvard University Shing-Tung Yau Harvard University

Publications of CMSA of Harvard mathscidoc:1702.38029

In this note we propose a generalization of heterotic/F-theory duality. We introduce a set of non-compact building blocks which we glue together to reach compact examples of generalized duality pairs. The F-theory building blocks consist of non-compact elliptically fibered Calabi-Yau fourfolds which also admit a K3 fibration. The compact elliptic model obtained by gluing need not have a globally defined K3 fibration. By replacing the K3 fiber of each F-theory building block with a T2, we reach building blocks in a heterotic dual vacuum which includes a position dependent dilaton and three-form flux. These building blocks are glued together to reach a heterotic flux background. We argue that in these vacua, the gauge fields of the heterotic string become localized, and remain dynamical even when gravity decouples. This enables a heterotic dual for the hyperflux GUT breaking mechanism which has recently figured prominently in F-theory GUT models. We illustrate our general proposal with some explicit examples.
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@inproceedings{jonathanbuilding,
  title={Building blocks for generalized heterotic/F-theory duality},
  author={Jonathan J. Heckman, Hai Lin, and Shing-Tung Yau},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207030700416196229},
}
Jonathan J. Heckman, Hai Lin, and Shing-Tung Yau. Building blocks for generalized heterotic/F-theory duality. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207030700416196229.
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