On the strong coupling behavior of heterotic and type I orbifolds
High Energy Physics - Theory
2009-10-31 v2
Abstract
We study the bulk effective theory of a class of orbifolds of the type IIB string with D5-branes, compactified to four dimensions. These constructions are connected, in a region of their moduli space, to some orbifolds of the type I and heterotic string. We compare the effective actions through the coupling of the R^2 term, and we argue that these orbifolds provide non-perturbative deformations of the latter, in which the gauge group is entirely non-perturbative.
Cite
@article{arxiv.hep-th/0005124,
title = {On the strong coupling behavior of heterotic and type I orbifolds},
author = {Andrea Gregori},
journal= {arXiv preprint arXiv:hep-th/0005124},
year = {2009}
}
Comments
17 pages, latex, revised version with some rewriting and new comments added