Warped information and entanglement islands in AdS/WCFT

Abstract We use the notion of double holography to study Hawking radiation emitted by the eternal BTZ black hole in equilibrium with a thermal bath, but in the form of warped CFT2 degrees of freedom. In agreement with the literature, we find entanglement islands and a phase transition in the entangl...

Full description

Bibliographic Details
Main Authors: Elena Caceres, Arnab Kundu, Ayan K. Patra, Sanjit Shashi
Format: Article
Language:English
Published: SpringerOpen 2021-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP07(2021)004
_version_ 1819146130014863360
author Elena Caceres
Arnab Kundu
Ayan K. Patra
Sanjit Shashi
author_facet Elena Caceres
Arnab Kundu
Ayan K. Patra
Sanjit Shashi
author_sort Elena Caceres
collection DOAJ
description Abstract We use the notion of double holography to study Hawking radiation emitted by the eternal BTZ black hole in equilibrium with a thermal bath, but in the form of warped CFT2 degrees of freedom. In agreement with the literature, we find entanglement islands and a phase transition in the entanglement surface, but our results differ significantly from work in AdS/CFT in three major ways: (1) the late-time entropy decreases in time, (2) island degrees of freedom exist at all times, not just at late times, with the phase transition changing whether or not these degrees of freedom include the black hole interior, and (3) the physics involves a field-theoretic IR divergence emerging when the boundary interval is too big relative to the black hole’s inverse temperature. This behavior in the entropy appears to be consistent with the non-unitarity of holographic warped CFT2 and demonstrates that the islands are not a phenomenon restricted to black hole information in unitary setups.
first_indexed 2024-12-22T13:09:01Z
format Article
id doaj.art-da72d3595ac1438c8c41215eb363ba35
institution Directory Open Access Journal
issn 1029-8479
language English
last_indexed 2024-12-22T13:09:01Z
publishDate 2021-07-01
publisher SpringerOpen
record_format Article
series Journal of High Energy Physics
spelling doaj.art-da72d3595ac1438c8c41215eb363ba352022-12-21T18:24:47ZengSpringerOpenJournal of High Energy Physics1029-84792021-07-012021714010.1007/JHEP07(2021)004Warped information and entanglement islands in AdS/WCFTElena Caceres0Arnab Kundu1Ayan K. Patra2Sanjit Shashi3Theory Group, Department of Physics, University of TexasTheory Division, Saha Institute of Nuclear Physics, HBNITheory Division, Saha Institute of Nuclear Physics, HBNITheory Group, Department of Physics, University of TexasAbstract We use the notion of double holography to study Hawking radiation emitted by the eternal BTZ black hole in equilibrium with a thermal bath, but in the form of warped CFT2 degrees of freedom. In agreement with the literature, we find entanglement islands and a phase transition in the entanglement surface, but our results differ significantly from work in AdS/CFT in three major ways: (1) the late-time entropy decreases in time, (2) island degrees of freedom exist at all times, not just at late times, with the phase transition changing whether or not these degrees of freedom include the black hole interior, and (3) the physics involves a field-theoretic IR divergence emerging when the boundary interval is too big relative to the black hole’s inverse temperature. This behavior in the entropy appears to be consistent with the non-unitarity of holographic warped CFT2 and demonstrates that the islands are not a phenomenon restricted to black hole information in unitary setups.https://doi.org/10.1007/JHEP07(2021)004AdS-CFT CorrespondenceBlack HolesSpace-Time Symmetries
spellingShingle Elena Caceres
Arnab Kundu
Ayan K. Patra
Sanjit Shashi
Warped information and entanglement islands in AdS/WCFT
Journal of High Energy Physics
AdS-CFT Correspondence
Black Holes
Space-Time Symmetries
title Warped information and entanglement islands in AdS/WCFT
title_full Warped information and entanglement islands in AdS/WCFT
title_fullStr Warped information and entanglement islands in AdS/WCFT
title_full_unstemmed Warped information and entanglement islands in AdS/WCFT
title_short Warped information and entanglement islands in AdS/WCFT
title_sort warped information and entanglement islands in ads wcft
topic AdS-CFT Correspondence
Black Holes
Space-Time Symmetries
url https://doi.org/10.1007/JHEP07(2021)004
work_keys_str_mv AT elenacaceres warpedinformationandentanglementislandsinadswcft
AT arnabkundu warpedinformationandentanglementislandsinadswcft
AT ayankpatra warpedinformationandentanglementislandsinadswcft
AT sanjitshashi warpedinformationandentanglementislandsinadswcft