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Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model

The black hole information puzzle can be resolved if two conditions are met. The first is that the information about what falls inside a black hole remains encoded in degrees of freedom that persist after the black hole completely evaporates. These degrees of freedom should be capable of purifying t...

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Detalles Bibliográficos
Autores principales: Perez, Alejandro, Viollet, Sami
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10670435/
https://www.ncbi.nlm.nih.gov/pubmed/37998171
http://dx.doi.org/10.3390/e25111479
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author Perez, Alejandro
Viollet, Sami
author_facet Perez, Alejandro
Viollet, Sami
author_sort Perez, Alejandro
collection PubMed
description The black hole information puzzle can be resolved if two conditions are met. The first is that the information about what falls inside a black hole remains encoded in degrees of freedom that persist after the black hole completely evaporates. These degrees of freedom should be capable of purifying the information. The second is if these purifying degrees of freedom do not significantly contribute to the system’s energy, as the macroscopic mass of the initial black hole has been radiated away as Hawking radiation to infinity. The presence of microscopic degrees of freedom at the Planck scale provides a natural mechanism for achieving these two conditions without running into the problem of the large pair-creation probabilities of standard remnant scenarios. In the context of Hawking radiation, the first condition implies that correlations between the in and out Hawking partner particles need to be transferred to correlations between the microscopic degrees of freedom and the out partners in the radiation. This transfer occurs dynamically when the in partners reach the singularity inside the black hole, entering the UV regime of quantum gravity where the interaction with the microscopic degrees of freedom becomes strong. The second condition suggests that the conventional notion of the vacuum’s uniqueness in quantum field theory should fail when considering the full quantum gravity degrees of freedom. In this paper, we demonstrate both key aspects of this mechanism using a solvable toy model of a quantum black hole inspired by loop quantum gravity.
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spelling pubmed-106704352023-10-25 Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model Perez, Alejandro Viollet, Sami Entropy (Basel) Article The black hole information puzzle can be resolved if two conditions are met. The first is that the information about what falls inside a black hole remains encoded in degrees of freedom that persist after the black hole completely evaporates. These degrees of freedom should be capable of purifying the information. The second is if these purifying degrees of freedom do not significantly contribute to the system’s energy, as the macroscopic mass of the initial black hole has been radiated away as Hawking radiation to infinity. The presence of microscopic degrees of freedom at the Planck scale provides a natural mechanism for achieving these two conditions without running into the problem of the large pair-creation probabilities of standard remnant scenarios. In the context of Hawking radiation, the first condition implies that correlations between the in and out Hawking partner particles need to be transferred to correlations between the microscopic degrees of freedom and the out partners in the radiation. This transfer occurs dynamically when the in partners reach the singularity inside the black hole, entering the UV regime of quantum gravity where the interaction with the microscopic degrees of freedom becomes strong. The second condition suggests that the conventional notion of the vacuum’s uniqueness in quantum field theory should fail when considering the full quantum gravity degrees of freedom. In this paper, we demonstrate both key aspects of this mechanism using a solvable toy model of a quantum black hole inspired by loop quantum gravity. MDPI 2023-10-25 /pmc/articles/PMC10670435/ /pubmed/37998171 http://dx.doi.org/10.3390/e25111479 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Perez, Alejandro
Viollet, Sami
Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model
title Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model
title_full Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model
title_fullStr Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model
title_full_unstemmed Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model
title_short Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model
title_sort discreteness unravels the black hole information puzzle: insights from a quantum gravity toy model
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10670435/
https://www.ncbi.nlm.nih.gov/pubmed/37998171
http://dx.doi.org/10.3390/e25111479
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