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We develop the regular black hole solutions recently proposed inarXiv:2109.05974 by incorporating the 1-loop quantum correction to the Newtonpotential as well as a time delay between an observer at the regular center andthat at infinity. We define the maximal time delay between the center and theinfinity by scanning the mass of black holes such that the sub-Planckianfeature of Kretschmann scalar curvature is preserved during the whole processof evaporation. We also compare the distinct behavior of Kretschmann curvaturefor black holes with an asymptotically Minkowski core and those with anasymptotically de-Sitter core, including Bardeen and Hayward black holes. Weexpect that this sort of regular black holes may provide more information aboutthe construction of effective metric for Planck stars.

Modified regular black holes with time delay and 1-loop quantum correction