2015/12/31 by Stephen Angus, Cyril Matti, Eirik Eik Svanes
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #F-theory #Heterotic string theory #M-theory #Noncommutative and Quantum Gravity Theories #Particle physics #Physics #String (physics) #String theory #Supercharge #Supergravity #Superpotential #Supersymmetry #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1007/jhep03(2016)177
published in Journal of High Energy Physics 2016(3) (Springer Nature) · 26 pages, minor corrections, Published version
openalex publication_date 2016/03/01 · arxiv created 2016/03/21 · arxiv updated 2016/04/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We continue the investigation into non-maximally symmetric compactifications of the heterotic string. In particular, we consider compactifications where the internal space is allowed to depend on two or more external directions. For preservation of supersymmetry, this implies that the internal space must in general be that of a Spin(7) manifold, which leads to a 1/4-BPS four-dimensional supersymmetric perturbative vacuum breaking all but one supercharge. We find that these solutions allow for internal geometries previously excluded by the domain-wall-type solutions, and hence the resulting four-dimensional superpotential is more generic. In particular, we find an interesting resemblance to the superpotentials that appear in non-geometric flux compactifications of type II string theory. If the vacua are to be used for phenomenological applications, they must be lifted to maximal symmetry by some non-perturbative or higher-order effect.