Magnetic solutions in AdS and trace anomalies
arXiv:0706.4378 · doi:10.1016/j.physletb.2007.09.075
Abstract
We discuss black hole and black string solutions in d=5 Einstein-Yang-Mills theory with negative cosmological constant, proposing a method to compute their mass and action. The magnetic gauge field of these configurations does not vanish at infinity. We argue that this implies a nonvanishing trace for the stress tensor of the dual d=4 theory.
8 pages, 2 figures