T-branes and defects
arXiv:1902.04108 · doi:10.1007/JHEP04(2019)110
Abstract
We study T-branes on compact Kaehler surfaces, in the presence of fields localised at curves. If such fields are treated as defects, their vevs induce delta-function sources for the 7-brane background, possibly leading to profiles with poles. We find that the presence of defect sources relaxes the constraints on globally well-defined T-brane configurations, avoiding the obstruction to building them on surfaces of positive curvature. Profiles with poles can be understood, from a 4d viewpoint, as non-trivial vevs for massive modes induced by the defects, and come with their own set of constraints. In the special case of fields localised on a self-intersection curve, we show how to retrieve the Hitchin system with defects from an ordinary global one with enhanced symmetry.
44 pages + appendices
References in corpus (37)
- GUTs and Exceptional Branes in F-theory - I
- GUTs and Exceptional Branes in F-theory - II: Experimental Predictions
- 6d Conformal Matter
- Lectures on F-theory compactifications and model building
- GUTs in Type IIB Orientifold Compactifications
- T-Branes and Monodromy
- Particle Physics Implications of F-theory
- Models of Particle Physics from Type IIB String Theory and F-theory: A Review
- De Sitter from T-branes
- Flavor Structure in F-theory Compactifications
- T-Branes and Geometry
- 6D RG Flows and Nilpotent Hierarchies
- More on Dimension-4 Proton Decay Problem in F-theory -- Spectral Surface, Discriminant Locus and Monodromy
- Matter wave functions and Yukawa couplings in F-theory Grand Unification
- Aspects of Flavour and Supersymmetry in F-theory GUTs
- F-theory on singular spaces
- Flux and Instanton Effects in Local F-theory Models and Hierarchical Fermion Masses
- Global Orientifolded Quivers with Inflation
- Fission, Fusion, and 6D RG Flows
- Spectra of D-branes with Higgs vevs
- T-branes as branes within branes
- Up-type quark masses in SU(5) F-theory models
- T-branes, Anomalies and Moduli Spaces in 6D SCFTs
- 4D Gauge Theories with Conformal Matter
- T-Branes at the Limits of Geometry
- T-branes through 3d mirror symmetry
- T-branes and Yukawa Couplings
- Yukawa hierarchies at the point of in F-theory
- There and back again: A T-brane's tale
- Towards Exotic Matter and Discrete Non-Abelian Symmetries in F-theory
- SUSY enhancement from T-branes
- T-branes, monopoles and S-duality
- T-branes and -corrections
- Compact T-branes
- Variations on stability
- Fitting fermion masses and mixings in F-theory GUTs
- T-branes and Matrix Models