Global F-theory Models: Instantons and Gauge Dynamics
Abstract
We elucidate certain aspects of F-theory gauge dynamics, due to quantum splitting of certain brane stacks, which are absent in the Type IIB limit. We also provide a working implementation of an algorithm for computing cohomology of line bundles on arbitrary toric varieties. This should be of general use for studying the physics of global Type IIB and F-theory models, in particular for the explicit counting of zero modes for rigid F-theory instantons which contribute to charged matter couplings. We illustrate the discussion by constructing and analyzing in detail a compact F-theory GUT model in which a D-brane instanton generates the top Yukawa coupling non-perturbatively.
Cite
@article{arxiv.1003.5337,
title = {Global F-theory Models: Instantons and Gauge Dynamics},
author = {Mirjam Cvetič and Iñaki García-Etxebarria and James Halverson},
journal= {arXiv preprint arXiv:1003.5337},
year = {2015}
}
Comments
28 pages, 4 figures. v2: Added refs and fixed typos. v3: Rearranged sections