Absence of a VVDZ Discontinuity in AdS_AdS
High Energy Physics - Theory
2009-11-07 v2
Abstract
We clarify the role of gauge invariance for the theory of an AdS4 brane embedded in AdS5. The presence of a nonvanishing mass parameter even for the lightest KK mode of the graviton indicates that all of the spin-2 modes propagate five polarization states. Despite this fact, it was shown earlier that the classical theory has a smooth limit as the mass parameter is taken to zero. We argue that locality in the fifth dimension ensures that this property survives at the quantum level.
Cite
@article{arxiv.hep-th/0106261,
title = {Absence of a VVDZ Discontinuity in AdS_AdS},
author = {Andreas Karch and Emanuel Katz and Lisa Randall},
journal= {arXiv preprint arXiv:hep-th/0106261},
year = {2009}
}
Comments
4 pages, Revtex; discussion of why VVDZ is not a problem even at the quantum level is changed