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.
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Pawlowski et al. (2018) studied this question.
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