Mitchell Institute for Fundamental Physics & Astronomy
College Station, Texas 77843
The conserved charges of a black hole (mass, charge,….) maps to its near horizon data (area, electric flux, ….) through a nontrivial radial flow. The attractor mechanism for supersymmetric black holes in asymptotically flat spacetimes shows that the near horizon data has minimal dependence on the asymptotic behavior. In asymptotically AdS spacetimes the radial flow is important, because it is interpreted as the relation between the UV (high energy) and the IR (low energy). The corresponding radial flow is qualitatively distinct from its asymptotically flat analogue, but it has a simple description that agrees with expectations from quantum field theory.