Operational islands and black hole dissipation in JT gravity
Abstract In this work, we revisit the problem of finding entanglement islands in 2d Jackiw-Teitelboim (JT) gravity. We implement the following adjustments to the traditional setup: (1) we do not explicitly couple to a non-gravitating system, instead we implement only pure absorption into a fiducial...
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Format: | Article |
Language: | English |
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SpringerOpen
2023-01-01
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Series: | Journal of High Energy Physics |
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Online Access: | https://doi.org/10.1007/JHEP01(2023)027 |
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author | Julian De Vuyst Thomas G. Mertens |
author_facet | Julian De Vuyst Thomas G. Mertens |
author_sort | Julian De Vuyst |
collection | DOAJ |
description | Abstract In this work, we revisit the problem of finding entanglement islands in 2d Jackiw-Teitelboim (JT) gravity. We implement the following adjustments to the traditional setup: (1) we do not explicitly couple to a non-gravitating system, instead we implement only pure absorption into a fiducial detector, (2) we utilise the operationally defined renormalised matter entanglement entropy, as defined by the boundary observer’s wordline. We show that this leads to a unitary Page curve that we explicitly compute, with an island outside of the event horizon. Next, we extend the analysis to a charged and/or supersymmetric black hole. We find that in a certain regime the charged black hole grows first as it emits superradiation before eventually dissipating. We obtain similar results when embedding the system in a supersymmetric setting. |
first_indexed | 2024-04-09T15:13:24Z |
format | Article |
id | doaj.art-e538e3d22e2a46f29451c8c1edec574f |
institution | Directory Open Access Journal |
issn | 1029-8479 |
language | English |
last_indexed | 2024-04-09T15:13:24Z |
publishDate | 2023-01-01 |
publisher | SpringerOpen |
record_format | Article |
series | Journal of High Energy Physics |
spelling | doaj.art-e538e3d22e2a46f29451c8c1edec574f2023-04-30T11:05:29ZengSpringerOpenJournal of High Energy Physics1029-84792023-01-012023115810.1007/JHEP01(2023)027Operational islands and black hole dissipation in JT gravityJulian De Vuyst0Thomas G. Mertens1Department of Physics & Astronomy, Ghent UniversityDepartment of Physics & Astronomy, Ghent UniversityAbstract In this work, we revisit the problem of finding entanglement islands in 2d Jackiw-Teitelboim (JT) gravity. We implement the following adjustments to the traditional setup: (1) we do not explicitly couple to a non-gravitating system, instead we implement only pure absorption into a fiducial detector, (2) we utilise the operationally defined renormalised matter entanglement entropy, as defined by the boundary observer’s wordline. We show that this leads to a unitary Page curve that we explicitly compute, with an island outside of the event horizon. Next, we extend the analysis to a charged and/or supersymmetric black hole. We find that in a certain regime the charged black hole grows first as it emits superradiation before eventually dissipating. We obtain similar results when embedding the system in a supersymmetric setting.https://doi.org/10.1007/JHEP01(2023)0272D GravityBlack HolesModels of Quantum GravityField Theories in Lower Dimensions |
spellingShingle | Julian De Vuyst Thomas G. Mertens Operational islands and black hole dissipation in JT gravity Journal of High Energy Physics 2D Gravity Black Holes Models of Quantum Gravity Field Theories in Lower Dimensions |
title | Operational islands and black hole dissipation in JT gravity |
title_full | Operational islands and black hole dissipation in JT gravity |
title_fullStr | Operational islands and black hole dissipation in JT gravity |
title_full_unstemmed | Operational islands and black hole dissipation in JT gravity |
title_short | Operational islands and black hole dissipation in JT gravity |
title_sort | operational islands and black hole dissipation in jt gravity |
topic | 2D Gravity Black Holes Models of Quantum Gravity Field Theories in Lower Dimensions |
url | https://doi.org/10.1007/JHEP01(2023)027 |
work_keys_str_mv | AT juliandevuyst operationalislandsandblackholedissipationinjtgravity AT thomasgmertens operationalislandsandblackholedissipationinjtgravity |