Terminating black holes in asymptotically free quantum gravity

Abstract

We study the homogeneous gravitational collapse of a spherical cloud of matter in a super-renormalizable and asymptotically free theory of gravity. We find a picture that differs substantially from the classical scenario. The central singularity appearing in classical general relativity is replaced by a bounce, after which the cloud re-expands indefinitely. We argue that a black hole, strictly speaking, never forms. The collapse only generates a temporary trapped surface, which can be interpreted as a black hole when the observational timescale is much shorter than the one of the collapse. However, it may also be possible that the gravitational collapse produces a black hole and that after the bounce the original cloud of matter evolves into a new universe.

10 pages, 3 figures. v2: refereed version

References in corpus (3)

• Towards a Resolution of the Cosmological Singularity in Non-local Higher Derivative Theories of Gravity
• Non-singular quantum-inspired gravitational collapse
• Inflation in (Super-)renormalizable Gravity

Cited by in corpus (72)

• Notes on non-singular models of black holes
• Testing black hole candidates with electromagnetic radiation
• Super-renormalizable & Finite Gravitational Theories
• Planck stars
• Information loss problem and a `black hole' model with a closed apparent horizon
• Geodesically complete black holes
• Occurrence of exact $R^2$ inflation in non-local UV-complete gravity
• Mass-gap for black hole formation in higher derivative and ghost free gravity
• Super-renormalizable or Finite Lee-Wick Quantum Gravity
• Classical collapse to black holes and quantum bounces: A review
• Universally Finite Gravitational & Gauge Theories
• Fast Radio Bursts and White Hole Signals
• The lifetime problem of evaporating black holes: mutiny or resignation
• Quantum radiation from an evaporating non-singular black hole
• Spacetime completeness of non-singular black holes in conformal gravity
• On Newtonian singularities in higher derivative gravity models
• Singularity avoidance for collapsing quantum dust in the Lemaitre-Tolman-Bondi model
• Improved Black Hole Fireworks: Asymmetric Black-Hole-to-White-Hole Tunneling Scenario
• Scattering amplitudes in super-renormalizable gravity
• Where does the physics of extreme gravitational collapse reside?
• Super-accelerating bouncing cosmology in asymptotically-free non-local gravity
• Mutiny at the white-hole district
• Finite quantum gauge theories
• Black hole evaporation in conformal gravity
• Non-polynomial Lagrangian approach to Regular Black Holes
• Exact solutions and spacetime singularities in nonlocal gravity
• Singularity avoidance in quantum-inspired inhomogeneous dust collapse
• Can static regular black holes form from gravitational collapse?
• Towards a quantum Oppenheimer-Snyder model
• Finite quantum gravity in dS and AdS spacetimes
• Black supernovae and black holes in non-local gravity
• Quantum Oppenheimer-Snyder model
• Fermi-bounce Cosmology and scale invariant power-spectrum
• Radiation from an emitter in the ghost free scalar theory
• Non-singular rotating black hole with a time delay in the center
• Obstruction of black hole singularity by quantum field theory effects
• Singularity avoidance in classical gravity from four-fermion interaction
• Formation and evaporation of an electrically charged black hole in conformal gravity
• Testing regular black holes with X-ray and GW data
• Quantum radiation from a sandwich black hole
• Black-hole stability in non-local gravity
• Collapse and dispersal of a homogeneous spin fluid in Einstein-Cartan theory
• A toy model for a baby universe inside a black hole
• Can we observationally test the weak cosmic censorship conjecture?
• Einstein-Cartan gravitational collapse of a homogeneous Weyssenhoff fluid
• Lee-Wick Black Holes
• The quantum, the geon, and the crystal
• One-loop effective potential in nonlocal scalar field models
• Exteriors to bouncing collapse models
• Black holes in multi-fractional and Lorentz-violating models
• Planck Stars from a Scale-dependent Gravity theory
• Trapped surfaces and nature of singularities in Lyra's geometry
• Matter Accretion onto a Conformal Gravity Black Hole
• Quantum gravitational dust collapse does not result in a black hole
• Palatini formulation of non-local gravity
• On effective models of regular black holes inspired by higher-derivative and nonlocal gravity
• Primordial black holes as cosmic expansion accelerators
• Finite Entanglement Entropy of Black Holes
• Hořava's quantum gravity illustrated by embedding diagrams of the Kehagias-Sfetsos spacetimes
• Gravitational Collapse without Singularity Formation in Brans-Dicke Theory
• Remarks on regular black holes
• Stringballs and Planckballs for Dark Matter
• Effectively nonlocal metric-affine gravity
• Infrared signatures of quantum bounce in a minisuperspace analysis of Lema\^ıtre-Tolman-Bondi dust collapse
• Evaporation of a nonsingular Reissner-Nordström black hole and information loss problem
• Black holes in non-local gravity
• Quantum vacuum effects on the final fate of a collapsing ball of dust
• Testing Regular Black Holes with X-ray data of GX 339-4
• Regular Black Hole Cores via Gravitational Evanescence of Collapsing Matter
• Primordial black hole driven cosmic acceleration
• Correction to Hawking radiation in non-singular gravitational collapse
• Singularity Avoidance in Gravitational Collapse of an Inhomogeneous Fluid in Rastall Gravity