Quantum black holes

Abstract

Static solutions of large-$N$ quantum dilaton gravity in 1 + 1 dimensions are analyzed and found to exhibit some unusual behavior. As expected from previous work, infinite-mass solutions are found describing a black hole in equilibrium with a bath of Hawking radiation. Surprisingly, the finite-mass solutions are found to approach zero coupling both at the horizon and spatial infinity, with a "bounce" off of strong coupling in between. Several new zero-mass solutions, candidate quantum vacua, are also described.