Heterotic String Conformal Field Theory And A-D-E Singularities
High Energy Physics - Theory
2010-04-07 v5
Abstract
We analyze the behavior of the heterotic string near an A-D-E singularity without small instantons. This problem is governed by a strongly coupled worldsheet conformal field theory, which, by a combination of O(alpha') corrections and worldsheet instantons, smooths out the singularities present in the classical geometry.
Cite
@article{arxiv.hep-th/9909229,
title = {Heterotic String Conformal Field Theory And A-D-E Singularities},
author = {Edward Witten},
journal= {arXiv preprint arXiv:hep-th/9909229},
year = {2010}
}
Comments
23 pp, additional references and citation of previous work and a nontrivial correction concerning (0,4) linear sigma models