Black hole information recovery in JT gravity

Gyongyosi, Zsolt; Hollowood, Timothy; Kumar, Prem; Legramandi, Andrea; Talwar, Neil

doi:10.1007/jhep01(2023)139

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Black hole information recovery in JT gravity

Zsolt Gyongyosi, Timothy Hollowood

, Prem Kumar

, Andrea Legramandi, Neil Talwar

Journal of High Energy Physics, Volume: 2023, Issue: 1

Swansea University Authors: Zsolt Gyongyosi, Timothy Hollowood , Prem Kumar , Andrea Legramandi, Neil Talwar

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DOI (Published version): 10.1007/jhep01(2023)139

Abstract

We consider the issue of information recovery for an object carrying energy and entropy into a black hole using the generalized entropy formalism, in the context of JT gravity where the backreaction problem can be solved exactly. We verify the main aspects of the Hayden-Preskill scenario but with so...

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Published in:	Journal of High Energy Physics
ISSN:	1029-8479
Published:	Springer Science and Business Media LLC 2023
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URI:	https://cronfa.swan.ac.uk/Record/cronfa62488
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spelling	2023-03-02T14:30:03.4762866 v2 62488 2023-02-03 Black hole information recovery in JT gravity 69e9fb49abdbb768bc399eed7cafb47c Zsolt Gyongyosi Zsolt Gyongyosi true false ea9ca59fc948276ff2ab547e91bdf0c2 0000-0002-3258-320X Timothy Hollowood Timothy Hollowood true false 087fd097167d724ce1b13cb285741ef5 0000-0003-0867-4213 Prem Kumar Prem Kumar true false 4cfd9e6d370d95652ab4208b6b83607e Andrea Legramandi Andrea Legramandi true false 1573a54f803531a7648ae7fb667e5a80 Neil Talwar Neil Talwar true false 2023-02-03 SPH We consider the issue of information recovery for an object carrying energy and entropy into a black hole using the generalized entropy formalism, in the context of JT gravity where the backreaction problem can be solved exactly. We verify the main aspects of the Hayden-Preskill scenario but with some refinements. We show that the information is encoded in the Hawking radiation in a redundant way, as expected for a quantum error correcting code. We show how quantum extremal surfaces associated to information recovery have the form of a python’s lunch and thereby show that the complexity of decoding is exponential in a combination of the entropy shift of the black hole and the entropy of the object. We also show that an infalling observer must have a smooth experience at the horizon and we calculate their endurance proper time inside the black hole before they are radiated out. Journal Article Journal of High Energy Physics 2023 1 Springer Science and Business Media LLC 1029-8479 2D Gravity; Black Holes 25 1 2023 2023-01-25 10.1007/jhep01(2023)139 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2023-03-02T14:30:03.4762866 2023-02-03T11:45:30.1986868 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Zsolt Gyongyosi 1 Timothy Hollowood 0000-0002-3258-320X 2 Prem Kumar 0000-0003-0867-4213 3 Andrea Legramandi 4 Neil Talwar 5 62488__26461__56f14513139543be8a23a3f944cbfbf5.pdf 62488.pdf 2023-02-03T11:48:25.9689836 Output 741382 application/pdf Version of Record true Copyright: The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) true eng http://creativecommons.org/licenses/by/4.0/
title	Black hole information recovery in JT gravity
spellingShingle	Black hole information recovery in JT gravity Zsolt Gyongyosi Timothy Hollowood Prem Kumar Andrea Legramandi Neil Talwar
title_short	Black hole information recovery in JT gravity
title_full	Black hole information recovery in JT gravity
title_fullStr	Black hole information recovery in JT gravity
title_full_unstemmed	Black hole information recovery in JT gravity
title_sort	Black hole information recovery in JT gravity
author_id_str_mv	69e9fb49abdbb768bc399eed7cafb47c ea9ca59fc948276ff2ab547e91bdf0c2 087fd097167d724ce1b13cb285741ef5 4cfd9e6d370d95652ab4208b6b83607e 1573a54f803531a7648ae7fb667e5a80
author_id_fullname_str_mv	69e9fb49abdbb768bc399eed7cafb47c_*_Zsolt Gyongyosi ea9ca59fc948276ff2ab547e91bdf0c2__Timothy Hollowood 087fd097167d724ce1b13cb285741ef5__Prem Kumar 4cfd9e6d370d95652ab4208b6b83607e__Andrea Legramandi 1573a54f803531a7648ae7fb667e5a80_**_Neil Talwar
author	Zsolt Gyongyosi Timothy Hollowood Prem Kumar Andrea Legramandi Neil Talwar
author2	Zsolt Gyongyosi Timothy Hollowood Prem Kumar Andrea Legramandi Neil Talwar
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container_title	Journal of High Energy Physics
container_volume	2023
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publishDate	2023
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doi_str_mv	10.1007/jhep01(2023)139
publisher	Springer Science and Business Media LLC
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description	We consider the issue of information recovery for an object carrying energy and entropy into a black hole using the generalized entropy formalism, in the context of JT gravity where the backreaction problem can be solved exactly. We verify the main aspects of the Hayden-Preskill scenario but with some refinements. We show that the information is encoded in the Hawking radiation in a redundant way, as expected for a quantum error correcting code. We show how quantum extremal surfaces associated to information recovery have the form of a python’s lunch and thereby show that the complexity of decoding is exponential in a combination of the entropy shift of the black hole and the entropy of the object. We also show that an infalling observer must have a smooth experience at the horizon and we calculate their endurance proper time inside the black hole before they are radiated out.
published_date	2023-01-25T04:22:08Z
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Black hole information recovery in JT gravity

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