By gluing together two sections of flat space-time in different metric representations (with the Minkowski metric representing the region far away from the black hole and the Rindler metric modeling the vicinity of the horizon), we construct a simplified toy model for black-hole evaporation. The sim...

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Main Authors: Schützhold, Ralf, Unruh, William George
Format: Article
Language:English
Published: Académie des sciences 2025-06-01
Series:Comptes Rendus. Physique
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Online Access:https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.252/
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author Schützhold, Ralf
Unruh, William George
author_facet Schützhold, Ralf
Unruh, William George
author_sort Schützhold, Ralf
collection DOAJ
description By gluing together two sections of flat space-time in different metric representations (with the Minkowski metric representing the region far away from the black hole and the Rindler metric modeling the vicinity of the horizon), we construct a simplified toy model for black-hole evaporation. The simple structure of this toy model allows us to construct exact analytic solutions for the two-point functions in the various vacuum states (Israel–Hartle–Hawking, Unruh and Boulware states) in an easy way and thus helps to understand and disentangle the different ingredients for Hawking radiation better.
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issn 1878-1535
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series Comptes Rendus. Physique
spelling doaj-art-bb5721e6e97d4a3f9dc57fb3aac594ef2025-08-20T03:58:13ZengAcadémie des sciencesComptes Rendus. Physique1878-15352025-06-0111010.5802/crphys.25210.5802/crphys.252Schützhold, Ralf0Unruh, William George1https://orcid.org/0000-0002-7393-0482Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany; Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, GermanyDepartment of Physics and Astronomy, University of British Columbia, Vancouver V6T 1Z1, Canada; Hagler Institute for Advanced Study, Institute for Quantum Science and Engineering, Texas A&M University, College Station, Texas 77843-4242, USABy gluing together two sections of flat space-time in different metric representations (with the Minkowski metric representing the region far away from the black hole and the Rindler metric modeling the vicinity of the horizon), we construct a simplified toy model for black-hole evaporation. The simple structure of this toy model allows us to construct exact analytic solutions for the two-point functions in the various vacuum states (Israel–Hartle–Hawking, Unruh and Boulware states) in an easy way and thus helps to understand and disentangle the different ingredients for Hawking radiation better.https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.252/Black-hole evaporationEnergy–momentum tensorTrace anomaly
spellingShingle Schützhold, Ralf
Unruh, William George
Comptes Rendus. Physique
Black-hole evaporation
Energy–momentum tensor
Trace anomaly
topic Black-hole evaporation
Energy–momentum tensor
Trace anomaly
url https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.252/