Tachyon-Free Non-Supersymmetric Strings on Orbifolds
High Energy Physics - Theory
2008-12-18 v1
Abstract
We discuss tachyon-free examples of (Type IIB on) non-compact non-supersymmetric orbifolds. Tachyons are projected out by discrete torsion between orbifold twists, while supersymmetry is broken by a Scherk-Schwarz phase (+1/-1 when acting on space-time bosons/fermions) accompanying some even order twists. The absence of tachyons is encouraging for constructing non-supersymmetric D3-brane gauge theories with stable infrared fixed points. The D3-brane gauge theories in our orbifold backgrounds have chiral N = 1 supersymmetric spectra, but non-supersymmetric interactions.
Keywords
Cite
@article{arxiv.0711.4108,
title = {Tachyon-Free Non-Supersymmetric Strings on Orbifolds},
author = {Zurab Kakushadze},
journal= {arXiv preprint arXiv:0711.4108},
year = {2008}
}
Comments
17 pages