On Fractional Instanton Numbers in Six Dimensional Heterotic E_8 x E_8 Orbifolds
High Energy Physics - Theory
2015-06-25 v1
Abstract
We show how the level matching condition in six dimensional, abelian and supersymmetric orbifolds of the E_8 x E_8 heterotic string can be given equivalently in terms of fractional gauge and gravitational instanton numbers. This relation is used to restate the classification of the orbifolds in terms of flat bundles away from the orbifold singularities under the constraint of the level matching condition. In an outlook these results are applied to Kaluza-Klein monopoles of the heterotic string on S^1 in Wilson line backgrounds.
Keywords
Cite
@article{arxiv.hep-th/0101023,
title = {On Fractional Instanton Numbers in Six Dimensional Heterotic E_8 x E_8 Orbifolds},
author = {Jan O. Conrad},
journal= {arXiv preprint arXiv:hep-th/0101023},
year = {2015}
}
Comments
Latex2e, 5 pages, contribution to the proceedings of the workshop ``The Quantum Structure of Spacetime and the Geometric Nature of Fundamental Interactions'', Berlin, October 2000