Quantum-improved Schwarzschild-(A)dS and Kerr-(A)dS spacetimes

We discuss quantum black holes in asymptotically safe quantum gravity with a scale identification based on the Kretschmann scalar. After comparing this scenario with other scale identifications, we investigate in detail the Kerr–(A)dS and Schwarzschild–(A)dS spacetimes. The global structure of these geometries is studied as well as the central curvature singularity and test particle trajectories. The existence of a Planck-sized, extremal, zero-temperature black hole remnant guarantees a stable end point of the evaporation process via Hawking radiation.