Vanishing of the conformal anomaly for strings in a gravitational wave
High Energy Physics - Theory
2009-11-10 v1
Abstract
Using the non-symmetric-connection approach proposed by Osborn, we demonstrate that, for a bosonic string in a specially chosen plane-fronted gravitational wave and an axion background, the conformal anomaly vanishes at the two-loop level. Under some conditions, the anomaly vanishes at all orders.
Keywords
Cite
@article{arxiv.hep-th/0306059,
title = {Vanishing of the conformal anomaly for strings in a gravitational wave},
author = {C. Duval and Z. Horvath and P. A. Horvathy},
journal= {arXiv preprint arXiv:hep-th/0306059},
year = {2009}
}
Comments
Previously not available in hep-th. Published as Physics Letters B 313, 10 (1993). Plain TeX 6 pages. No figures