Author:
Cheng Peng,Melnikov Ilarion V.,Minasian Ruben
Abstract
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− structure.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference51 articles.
1. C. Angelantonj and A. Sagnotti, Open strings, Phys. Rept. 371 (2002) 1 [Erratum ibid. 376 (2003) 407] [hep-th/0204089] [INSPIRE].
2. E.G. Gimon and J. Polchinski, Consistency conditions for orientifolds and D-manifolds, Phys. Rev. D 54 (1996) 1667 [hep-th/9601038] [INSPIRE].
3. A. Dabholkar, Lectures on orientifolds and duality, in the proceedings of the ICTP Summer School in High-Energy Physics and Cosmology, Trieste, Italy, June 02 – July 11 (1997), p. 128–191 [hep-th/9804208] [INSPIRE].
4. A. Sen, F theory and orientifolds, Nucl. Phys. B 475 (1996) 562 [hep-th/9605150] [INSPIRE].
5. A. Sen, Orientifold limit of F theory vacua, Phys. Rev. D 55 (1997) R7345 [hep-th/9702165] [INSPIRE].