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Séminaires

Non-singular without quantum gravity nor exotic physics

par Francesco Di Filippo (Goethe U.)

Europe/Paris
210/1-114 - Salle des Séminaires (IJCLab)

210/1-114 - Salle des Séminaires

IJCLab

30
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Description

Singularity theorems suggest that spacetime singularities are unavoidable in general relativity when matter satisfies standard energy conditions. Although Hawking radiation provides a well-understood mechanism for violating these conditions, the resulting violation is commonly regarded as too weak to remove singularities, reinforcing the view that exotic physics or full quantum gravity is required. In this talk,we challenge this view by analyzing a charged spherically symmetric black hole formed through gravitational collapse and evaporating via Hawking radiation. We show that the electromagnetic repulsion and the mild violation of energy conditions due to the presence of Hawking radiation can be sufficient to avoid the formation of both a singularity and a Cauchy horizon.

Organisé par

Jacopo Mazza