Entanglement between two evaporating black holes

Abstract We study a thermo-field double type entangle state on two disjoint gravitating universes, say A and B, with an eternal black hole on each. As was shown previously, its entanglement entropy of the universe A is computed by the generalized entropy on a new spacetime constructed by suitably gl...

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Main Authors: Akihiro Miyata, Tomonori Ugajin
Format: Article
Language:English
Published: SpringerOpen 2022-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2022)009
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author Akihiro Miyata
Tomonori Ugajin
author_facet Akihiro Miyata
Tomonori Ugajin
author_sort Akihiro Miyata
collection DOAJ
description Abstract We study a thermo-field double type entangle state on two disjoint gravitating universes, say A and B, with an eternal black hole on each. As was shown previously, its entanglement entropy of the universe A is computed by the generalized entropy on a new spacetime constructed by suitably gluing the black holes on A and B. We study such spacetime gluings when universes are asymptotically flat and AdS cases, especially when the masses of these black holes are different. We also clarify the rule to construct such a glued spacetime in more general settings from the gravitational path integral view point.
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spelling doaj.art-c8155994d2d44c8aaf7840a540bc0d022022-12-22T02:23:15ZengSpringerOpenJournal of High Energy Physics1029-84792022-09-012022913010.1007/JHEP09(2022)009Entanglement between two evaporating black holesAkihiro Miyata0Tomonori Ugajin1Institute of Physics, University of TokyoCenter for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto UniversityAbstract We study a thermo-field double type entangle state on two disjoint gravitating universes, say A and B, with an eternal black hole on each. As was shown previously, its entanglement entropy of the universe A is computed by the generalized entropy on a new spacetime constructed by suitably gluing the black holes on A and B. We study such spacetime gluings when universes are asymptotically flat and AdS cases, especially when the masses of these black holes are different. We also clarify the rule to construct such a glued spacetime in more general settings from the gravitational path integral view point.https://doi.org/10.1007/JHEP09(2022)0092D GravityBlack Holes
spellingShingle Akihiro Miyata
Tomonori Ugajin
Entanglement between two evaporating black holes
Journal of High Energy Physics
2D Gravity
Black Holes
title Entanglement between two evaporating black holes
title_full Entanglement between two evaporating black holes
title_fullStr Entanglement between two evaporating black holes
title_full_unstemmed Entanglement between two evaporating black holes
title_short Entanglement between two evaporating black holes
title_sort entanglement between two evaporating black holes
topic 2D Gravity
Black Holes
url https://doi.org/10.1007/JHEP09(2022)009
work_keys_str_mv AT akihiromiyata entanglementbetweentwoevaporatingblackholes
AT tomonoriugajin entanglementbetweentwoevaporatingblackholes