Singularity-free gravitational collapse and asymptotic safety

Abstract

A general class of quantum improved stellar models with interiors composed of non-interacting ('dust') particles is obtained and analyzed in a framework compatible with asymptotic safety. First, the effective exterior, based on the Quantum Einstein Gravity approach to asymptotic safety is presented and, second, its effective compatible dust interiors are deduced. The resulting stellar models appear to be devoid of shell-focusing singularities.

11 pages, 1 figure. Added a comment for the energy-momentum tensor with respect to version 2 on the arXiv

References in corpus (3)

• Spacetime Structure of an Evaporating Black Hole in Quantum Gravity
• Asymptotic Safety, Singularities, and Gravitational Collapse
• On the causal characterization of singularities in spherically symmetric spacetimes

Cited by in corpus (8)

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• Quasinormal modes of renormalization group improved Dymnikova regular black holes
• Black holes as self-sustained quantum states, and Hawking radiation
• Singularity avoidance in quantum-inspired inhomogeneous dust collapse
• Quantum vacuum effects on the final fate of a collapsing ball of dust
• Phenomenological footprints of Lambda varying gravity theories inspired from quantum gravity models in the multi-messenger era
• Invariant Renormalization-Group improvement
• Anomaly induced quantum correction to charged black holes; geometry and thermodynamics