Journal
PHYSICAL REVIEW D
Volume 103, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.103.124027
Keywords
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Funding
- ACRI Young Investigators Training Program
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This study analyzes the dynamics of regular black holes and identifies crucial features that tame the growth of the mass function and reduce the curvature singularity at the Cauchy horizon. It is explicitly demonstrated that the regular black hole solutions proposed by Hayward and obtained from Asymptotic Safety satisfy these properties.
Non-singular black hole geometries typically come with two spacetime horizons: an (outer) event horizon and an (inner) Cauchy horizon. This nurtures the speculation that they may be subject to a mass-inflation effect which renders the Cauchy horizon unstable. We analyze the dynamics associated with spherically symmetric, regular black holes taking the full backreaction between the infalling matter and geometry into account. On this basis, we identify the crucial features taming the growth of the mass function and diminishing the curvature singularity at the Cauchy horizon. It is demonstrated explicitly that the regular black hole solutions proposed by Hayward and obtained from Asymptotic Safety satisfy these properties.
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