99 citations · 188 across the 10 of their papers we have counts for
12 papers · 1 filter
Hawking radiation and graybody factor of slightly deformed Schwarzschild black holes
Asier Alonso-Bardaji, David Brizuela, Marc Schneider
We analyze the radiative properties of a general class of static and spherically symmetric black holes described by three independent shape functions, that encompass a broad family…
Loopy Black-Hole Remnants
Asier Alonso-Bardaji
The quantized area predicted by loop quantum gravity suggests the existence of a lower bound for black-hole horizons. We prove this intuition within a covariant effective model for…
Dynamical theory for spherical black holes in modified gravity
Asier Alonso-Bardaji, David Brizuela
We provide a general algorithm to construct a Hamiltonian, such that its dynamical flow covariantly defines any given spherically symmetric and static metric. This Hamiltonian is d…
Radiative properties of a nonsingular black hole: Hawking radiation and gray-body factor
Asier Alonso-Bardaji, David Brizuela, Marc Schneider
We study the radiative properties of a spherical and singularity-free black-hole geometry recently proposed in the literature. Contrary to the Schwarzschild spacetime, this geometr…
Formation of nonsingular spherical black holes with holonomy corrections
Asier Alonso-Bardaji
We present a canonical model of spherical gravity with covariant corrections motivated by loop quantum gravity. The effective Hamiltonian defines univocally a family of geometries…
Nonsingular collapse of a spherical dust cloud
Asier Alonso-Bardaji, David Brizuela
We provide a covariant framework to study singularity-free Lemaître-Tolman-Bondi spacetimes with effective corrections motivated by loop quantum gravity. We show that, as in genera…
Spacetime geometry from canonical spherical gravity
Asier Alonso-Bardaji, David Brizuela
We study covariant models for vacuum spherical gravity within a canonical setting. Starting from a general ansatz, we derive the most general family of Hamiltonian constraints that…
Singularity resolution by holonomy corrections: Spherical charged black holes in cosmological backgrounds
Asier Alonso-Bardaji, David Brizuela, Raül Vera
We study spherical charged black holes in the presence of a cosmological constant with corrections motivated by the theory of loop quantum gravity. The effective theory is construc…
Nonsingular spherically symmetric black-hole model with holonomy corrections
Asier Alonso-Bardaji, David Brizuela, Raül Vera
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 const…
An effective model for the quantum Schwarzschild black hole
Asier Alonso-Bardaji, David Brizuela, Raül Vera
We present an effective theory to describe the quantization of spherically symmetric vacuum in loop quantum gravity. We include anomaly-free holonomy corrections through a canonica…
Anomaly-free deformations of spherical general relativity coupled to matter
Asier Alonso-Bardaji, David Brizuela
A systematic approach is developed in order to obtain spherically symmetric midisuperspace models that accept holonomy modifications in the presence of matter fields with local deg…
Holonomy and inverse-triad corrections in spherical models coupled to matter
Asier Alonso-Bardaji, David Brizuela
Loop quantum gravity introduces two characteristic modifications in the classical constraints of general relativity: the holonomy and inverse-triad corrections. In this paper, a sy…