A comment on discrete Kalb-Ramond field on orientifold and rank reduction
High Energy Physics - Theory
2008-11-26 v2
Abstract
We show that the rank reduction of the gauge group on orientifolds in presence of non vanishing discrete Kalb-Ramond field can be explained by the presence of an induced field strength in a non trivial bundle on the branes. This field strength is also necessary for the tadpole cancellation and the number of branes is left unchanged by the presence of the discrete Kalb-Ramond background.
Cite
@article{arxiv.0804.3931,
title = {A comment on discrete Kalb-Ramond field on orientifold and rank reduction},
author = {I. Pesando},
journal= {arXiv preprint arXiv:0804.3931},
year = {2008}
}
Comments
v2: added references, improved introduction and corrected misprints; 15 pages