Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

This is a review of results on black hole physics in the context of loop quantum gravity. The
key feature underlying these results is the discreteness of geometric quantities at the Planck …

The compact and, with ∼ 4.3 ± 0.3 * 10^ 6∼ 4.3±0.3× 10 6 M _ ⊙⊙, very massive object
located at the center of the Milky Way is currently the very best candidate for a supermassive …

A bstract In the 1980's, work by Coleman and by Giddings and Strominger linked the physics
of spacetime wormholes to 'baby universes' and an ensemble of theories. We revisit such …

The recent opening of gravitational wave astronomy has shifted the debate about black hole
mimickers from a purely theoretical arena to a phenomenological one. In this respect …

By considering the quantum Oppenheimer-Snyder model in loop quantum cosmology, a
new quantum black hole model whose metric tensor is a suitably deformed Schwarzschild …

The Square Kilometre Array (SKA) is a planned large radio interferometer designed to
operate over a wide range of frequencies, and with an order of magnitude greater sensitivity …

We present a new effective description of macroscopic Kruskal black holes that incorporates
corrections due to quantum geometry effects of loop quantum gravity. It encompasses both …

We discuss static spherically symmetric metrics which represent nonsingular black holes in
four-and higher-dimensional spacetime. We impose a set of restrictions, such as a regularity …

While singularities are inevitable in the classical theory of general relativity, it is commonly
believed that they will not be present when quantum gravity effects are taken into account in …