The traditional view from particle physics is that quantum-gravity effects should become
detectable only at extremely high energies and small length scales. Owing to the significant …

More than 65 years ago, John Wheeler suggested that quantum uncertainties of the metric
would be of order one at the Planck scale, leading to large fluctuations in spacetime …

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 …

We use Dirac's method for the quantization of constrained systems in order to quantize a
spatially flat Friedmann–Lemaître–Robertson–Walker spacetime in the context of f (Q) …

In the present work, we theoretically investigate gravitational lensing in the spacetime of a
holonomy corrected Schwarzschild black hole. Analytical expressions for the light deflection …

In this work we investigate a Schwarzschild-type black hole that is corrected by the
Generalised Uncertainty Principle (GUP) and possesses topological defects within the …

The unification of quantum mechanics and general relativity has long been elusive. Only
recently have empirical predictions of various possible theories of quantum gravity been put …

We present a covariant model of a spherically symmetric black hole with corrections
motivated by loop quantum gravity. The effective modifications, parametrized by a positive …

In this paper we study the gravitational lensing effect for the Schwarzschild solution with
holonomy corrections. We use two types of approximation methods to calculate the …

We present an effective theory to describe the quantization of spherically symmetric vacuum
motivated by loop quantum gravity. We include anomaly-free holonomy corrections through …