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Main Author: Martin-Dussaud, Pierre
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2504.05492
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author Martin-Dussaud, Pierre
author_facet Martin-Dussaud, Pierre
contents The black-to-white hole scenario is a well-motivated proposal from non-perturbative quantum gravity concerning the final stage of black hole evaporation. In this framework, a black hole of initial mass $M$ undergoes Hawking evaporation over a timescale of order $M^3$ before tunneling into a long-lived white hole. Previous estimates suggest that the lifetime of the resulting white hole scales as $M^4$. In this short note, I argue that such estimates neglect key aspects of the white hole's internal dynamics, and I demonstrate that a more consistent timescale for the white hole lifetime is of order $M^5$.
format Preprint
id arxiv_https___arxiv_org_abs_2504_05492
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The lifetime of white hole remnants is $M^5$
Martin-Dussaud, Pierre
General Relativity and Quantum Cosmology
The black-to-white hole scenario is a well-motivated proposal from non-perturbative quantum gravity concerning the final stage of black hole evaporation. In this framework, a black hole of initial mass $M$ undergoes Hawking evaporation over a timescale of order $M^3$ before tunneling into a long-lived white hole. Previous estimates suggest that the lifetime of the resulting white hole scales as $M^4$. In this short note, I argue that such estimates neglect key aspects of the white hole's internal dynamics, and I demonstrate that a more consistent timescale for the white hole lifetime is of order $M^5$.
title The lifetime of white hole remnants is $M^5$
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2504.05492