Regular Black Hole Cores via Gravitational Evanescence of Collapsing Matter

Abstract

Modified Einstein's equations implementing both an energy-dependent Newtonian and cosmological constant can be obtained via a modified action characterised by a non-minimal gravity-matter coupling. We show how different dynamics for the high energy regime - that nevertheless have in common the vanishing of the Newton constant - result in models of gravitational collapse which source the formation of non-singular geometries with different types of asymptotic core: de Sitter, Minkowski, and with "steep pressure". As we categorise their defining properties, one feature, which we prove to be actually independent of both the specific form of the non-minimal coupling and the equation of state of the collapsing fluid, stands out: the formation of a geometry with Minkowski core occurs only if the Newton constant, before finally vanishing, assumes negative values.

22 pages, 6 figures; some discursive parts are extended/modified; this version matches publication on Phys. Rev. D

References in corpus (54)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• The Confrontation between General Relativity and Experiment
• First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
• First Sagittarius A* Event Horizon Telescope Results. VI: Testing the Black Hole Metric
• Horndeski theory and beyond: a review
• Construction of Regular Black Holes in General Relativity
• Notes on non-singular models of black holes
• Fate of gravitational collapse in semiclassical gravity
• Quantum Oppenheimer-Snyder and Swiss Cheese models
• Regular black holes: A short topic review
• The matter Lagrangian and the energy-momentum tensor in modified gravity with non-minimal coupling between matter and geometry
• A black hole mass threshold from non-singular quantum gravitational collapse
• New derivation of the Lagrangian of a perfect fluid with a barotropic equation of state
• Dynamical renormalization of black-hole spacetimes
• Theory of gravitation theories: a no-progress report
• Quantum gravity of dust collapse: shock waves from black holes
• Singularities and Quantum Gravity
• Foliation dependence of black hole apparent horizons in spherical symmetry
• Dust collapse in asymptotic safety: a path to regular black holes
• On the geometry of the black-to-white hole transition within a single asymptotic region
• Towards a Non-singular Paradigm of Black Hole Physics
• Probing the Effective Quantum Gravity via Quasinormal Modes and Shadows of Black Holes
• Singularity-free gravitational collapse and asymptotic safety
• Quasinormal modes and gray-body factors of regular black holes in asymptotically safe gravity
• Singularity avoidance in quantum-inspired inhomogeneous dust collapse
• Asymptotic Safety, Singularities, and Gravitational Collapse
• Cosmological coupling of nonsingular black holes
• Action principle selection of regular black holes
• Testing regular black holes with X-ray and GW data
• Shadow of regular black hole in scalar-tensor-vector gravity theory
• Gravitational collapse in effective loop quantum gravity: beyond marginally bound configurations
• Echoes from backreacting exotic compact objects
• Regular Black Holes from Proper-Time flow in Quantum Gravity and their Quasinormal modes, Shadow and Hawking radiation
• Newman-Janis algorithm's application to regular black hole models
• Singularity avoidance in quantum gravity
• Resolving Extreme Jet Substructure
• Quasi-Local Black Hole Horizons: Recent Advances
• Suppression of spacetime singularities in quantum gravity
• Regular BTZ black holes from an infinite tower of corrections
• Near-future discovery of point sources of ultra-high-energy neutrinos
• Singularity resolution and inflation from an infinite tower of regularized curvature corrections
• Visions in Quantum Gravity
• What if Newton's Gravitational Constant was negative?
• Master field equations for spherically symmetric gravitational fields beyond general relativity
• Covariant dynamics from static spherically symmetric geometries
• Whispers from the quantum core: the ringdown of semiclassical stars
• Toward regular black holes in sixth-derivative gravity
• Freeze-in Dark Matter Perturbations are Adiabatic
• The non-chiral intermediate Heisenberg ferromagnet equation
• Stellar collapse with pressure in effective loop quantum gravity
• Regular black hole from a confined spin connection in Poincare gauge gravity
• Negative Newton constant may destroy some conjectures
• Searching for quantum-gravity footprint around stellar-mass black holes
• Equivalence of scalar-tensor theories and scale-dependent gravity