Black Hole Monodromy and Conformal Field Theory
arXiv:1303.0759 · doi:10.1103/PhysRevD.88.044003
Abstract
The analytic structure of solutions to the Klein-Gordon equation in a black hole background, as represented by monodromy data, is intimately related to black hole thermodynamics. It encodes the "hidden conformal symmetry" of a non-extremal black hole, and it explains why features of the inner event horizon appear in scattering data such as greybody factors. This indicates that hidden conformal symmetry is generic within a universality class of black holes.
20 pages, v2 minor corrections, updated references