Flat F-theory and friends
High Energy Physics - Theory
2023-11-23 v2
Abstract
We discuss F-theory backgrounds associated to flat torus bundles over Ricci-flat manifolds. In this setting the F-theory background can be understood as a IIB orientifold with a large radius limit described by a supersymmetric compactification of IIB supergravity on a smooth, Ricci flat, but in general non-spin geometry. When compactified on an additional circle these backgrounds are T-dual to IIA compactifications on smooth non-orientable manifolds with a Pin-minus structure.
Cite
@article{arxiv.2306.00865,
title = {Flat F-theory and friends},
author = {Peng Cheng and Ilarion V. Melnikov and Ruben Minasian},
journal= {arXiv preprint arXiv:2306.00865},
year = {2023}
}
Comments
26 pages; typos fixed, comments added, discussion of T-duality clarified