Non-perturbative K3 Orientifolds with NS-NS B-flux
Abstract
We consider non-perturbative six dimensional N=1 space-time supersymmetric orientifolds of Type IIB on K3 with non-trivial NS-NS B-flux. All of these models are non-perturbative in both orientifold and heterotic pictures. Thus, some states in such compactifications arise in ``twisted'' open string sectors which lack world-sheet description in terms of D-branes. We also discuss their dual F-theory compactifications on certain Voisin-Borcea orbifolds. In particular, the explicit construction of non-perturbative K3 orientifolds with NS-NS B-flux gives additional evidence for the conjectured extension of Nikulin's classification in the context of Voisin-Borcea orbifolds.
Keywords
Cite
@article{arxiv.hep-th/9905033,
title = {Non-perturbative K3 Orientifolds with NS-NS B-flux},
author = {Zurab Kakushadze},
journal= {arXiv preprint arXiv:hep-th/9905033},
year = {2009}
}
Comments
15 pages, revtex; minor misprints corrected, clarifying remarks and references added (to appear in Phys. Lett. B)