Removing Singularities
High Energy Physics - Theory
2009-11-07 v1
Abstract
Big bang/crunch curvature singularities in exact CFT string backgrounds can be removed by turning on gauge fields. This is described within a family of {SL(2)xSU(2)xU(1)_x}/{U(1)xU(1)} quotient CFTs. Uncharged incoming wavefunctions from the ``whiskers'' of the extended universe can be fully reflected if and only if a big bang/crunch curvature singularity, from which they are scattered, exists. Extended BTZ-like singularities remain as long as U(1)_x is compact.
Keywords
Cite
@article{arxiv.hep-th/0212242,
title = {Removing Singularities},
author = {Shmuel Elitzur and Amit Giveon and Eliezer Rabinovici},
journal= {arXiv preprint arXiv:hep-th/0212242},
year = {2009}
}
Comments
21 pages, harvmac