D-instanton and polyinstanton effects from type I' D0-brane loops
High Energy Physics - Theory
2014-11-20 v2
Abstract
We study non-perturbative D(-1)-instanton corrections to quartic gauge and curvature couplings in 8d type IIB orientifolds, in terms of a one-loop computation of BPS D0-branes in T-dual type I' models. The complete perturbative and non-perturbative results are determined by the BPS multiplicities of perturbative open strings and D0-brane bound states in the 9d type I' theory. Its modular properties admit a geometric interpretation by lifting to Horava-Witten theory. We use the type I' viewpoint to motivate a proper interpretation of 8d and 4d polyinstanton effects, consistent with heterotic - type II orientifold duality.
Cite
@article{arxiv.1001.3390,
title = {D-instanton and polyinstanton effects from type I' D0-brane loops},
author = {Christoffer Petersson and Pablo Soler and Angel M. Uranga},
journal= {arXiv preprint arXiv:1001.3390},
year = {2014}
}
Comments
37 pages, 2 figures, clarifications and references added