UV and IR effects on Hawking radiation

Abstract We study the time-dependence of Hawking radiation for a black hole in the Unruh vacuum, and find that it is not robust against certain UV and IR effects. If there is a UV cutoff at the Planck scale, Hawking radiation is turned off after the scrambling time. In the absence of a UV cutoff, Ha...

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Main Authors: Pei-Ming Ho, Hikaru Kawai
Format: Article
Language:English
Published: SpringerOpen 2023-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2023)002
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author Pei-Ming Ho
Hikaru Kawai
author_facet Pei-Ming Ho
Hikaru Kawai
author_sort Pei-Ming Ho
collection DOAJ
description Abstract We study the time-dependence of Hawking radiation for a black hole in the Unruh vacuum, and find that it is not robust against certain UV and IR effects. If there is a UV cutoff at the Planck scale, Hawking radiation is turned off after the scrambling time. In the absence of a UV cutoff, Hawking radiation is sensitive to the IR cutoff through a UV/IR connection due to higher-derivative interactions in the effective theory. Furthermore, higher-derivative interactions with the background contribute to a large amplitude of particle creation that changes Hawking radiation. This unexpected large effect is related to a peculiar feature of the Hawking particle wave packets.
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spelling doaj.art-caf97d0094264bcfa45c9316a97117022023-06-25T11:04:51ZengSpringerOpenJournal of High Energy Physics1029-84792023-03-012023313410.1007/JHEP03(2023)002UV and IR effects on Hawking radiationPei-Ming Ho0Hikaru Kawai1Department of Physics and Center for Theoretical Physics, National Taiwan UniversityDepartment of Physics and Center for Theoretical Physics, National Taiwan UniversityAbstract We study the time-dependence of Hawking radiation for a black hole in the Unruh vacuum, and find that it is not robust against certain UV and IR effects. If there is a UV cutoff at the Planck scale, Hawking radiation is turned off after the scrambling time. In the absence of a UV cutoff, Hawking radiation is sensitive to the IR cutoff through a UV/IR connection due to higher-derivative interactions in the effective theory. Furthermore, higher-derivative interactions with the background contribute to a large amplitude of particle creation that changes Hawking radiation. This unexpected large effect is related to a peculiar feature of the Hawking particle wave packets.https://doi.org/10.1007/JHEP03(2023)002Black HolesEffective Field Theories
spellingShingle Pei-Ming Ho
Hikaru Kawai
UV and IR effects on Hawking radiation
Journal of High Energy Physics
Black Holes
Effective Field Theories
title UV and IR effects on Hawking radiation
title_full UV and IR effects on Hawking radiation
title_fullStr UV and IR effects on Hawking radiation
title_full_unstemmed UV and IR effects on Hawking radiation
title_short UV and IR effects on Hawking radiation
title_sort uv and ir effects on hawking radiation
topic Black Holes
Effective Field Theories
url https://doi.org/10.1007/JHEP03(2023)002
work_keys_str_mv AT peimingho uvandireffectsonhawkingradiation
AT hikarukawai uvandireffectsonhawkingradiation