Quantum evaporation of a naked singularity

Details Quantum evaporation of a naked singularity Quantum evaporation of a naked singularity

2005-06-28

arxiv.org/abs/gr-qc/0506129v2

Phys.Rev.Lett. 96 (2006) 031302

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 2 figures. Minor changes to match published version in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.96.031302

We investigate here quantum effects in gravitational collapse of a scalar field model which classically leads to a naked singularity. We show that non-perturbative semi-classical modifications near the singularity, based on loop quantum gravity, give rise to a strong outward flux of energy. This leads to the dissolution of the collapsing cloud before the singularity can form. Quantum gravitational effects thus censor naked singularities by avoiding their formation. Further, quantum gravity induced mass flux has a distinct feature which may lead to a novel observable signature in astrophysical bursts.

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