Looking for (and not finding) a bulk brane

Abstract When does a holographic CFT with a boundary added to it (a BCFT) also have a ‘good’ holographic dual with a localized gravitating end-of-the-world brane? We argue that the answer to this question is almost never. By studying Lorentzian BCFT correlators, we characterize constraints imposed o...

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Main Authors: Wyatt Reeves, Moshe Rozali, Petar Simidzija, James Sully, Christopher Waddell, David Wakeham
Format: Article
Language:English
Published: SpringerOpen 2021-12-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP12(2021)002
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author Wyatt Reeves
Moshe Rozali
Petar Simidzija
James Sully
Christopher Waddell
David Wakeham
author_facet Wyatt Reeves
Moshe Rozali
Petar Simidzija
James Sully
Christopher Waddell
David Wakeham
author_sort Wyatt Reeves
collection DOAJ
description Abstract When does a holographic CFT with a boundary added to it (a BCFT) also have a ‘good’ holographic dual with a localized gravitating end-of-the-world brane? We argue that the answer to this question is almost never. By studying Lorentzian BCFT correlators, we characterize constraints imposed on a BCFT by the existence of a bulk causal structure. We argue that approximate ‘bulk brane’ singularities place restrictive constraints on the spectrum of a BCFT that are not expected to be true generically. We discuss how similar constraints implied by bulk causality might apply in higher-dimensional holographic descriptions of BCFTs involving a degenerating internal space. We suggest (although do not prove) that even these higher-dimensional holographic duals are not generic.
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spelling doaj.art-bbb80bba75ed44b58e0b8f9ef7a57e3d2022-12-21T21:32:31ZengSpringerOpenJournal of High Energy Physics1029-84792021-12-0120211214610.1007/JHEP12(2021)002Looking for (and not finding) a bulk braneWyatt Reeves0Moshe Rozali1Petar Simidzija2James Sully3Christopher Waddell4David Wakeham5Department of Physics and Astronomy, University of British ColumbiaDepartment of Physics and Astronomy, University of British ColumbiaDepartment of Physics and Astronomy, University of British ColumbiaDepartment of Physics and Astronomy, University of British ColumbiaDepartment of Physics and Astronomy, University of British ColumbiaDepartment of Physics and Astronomy, University of British ColumbiaAbstract When does a holographic CFT with a boundary added to it (a BCFT) also have a ‘good’ holographic dual with a localized gravitating end-of-the-world brane? We argue that the answer to this question is almost never. By studying Lorentzian BCFT correlators, we characterize constraints imposed on a BCFT by the existence of a bulk causal structure. We argue that approximate ‘bulk brane’ singularities place restrictive constraints on the spectrum of a BCFT that are not expected to be true generically. We discuss how similar constraints implied by bulk causality might apply in higher-dimensional holographic descriptions of BCFTs involving a degenerating internal space. We suggest (although do not prove) that even these higher-dimensional holographic duals are not generic.https://doi.org/10.1007/JHEP12(2021)002AdS-CFT CorrespondenceConformal Field Theory
spellingShingle Wyatt Reeves
Moshe Rozali
Petar Simidzija
James Sully
Christopher Waddell
David Wakeham
Looking for (and not finding) a bulk brane
Journal of High Energy Physics
AdS-CFT Correspondence
Conformal Field Theory
title Looking for (and not finding) a bulk brane
title_full Looking for (and not finding) a bulk brane
title_fullStr Looking for (and not finding) a bulk brane
title_full_unstemmed Looking for (and not finding) a bulk brane
title_short Looking for (and not finding) a bulk brane
title_sort looking for and not finding a bulk brane
topic AdS-CFT Correspondence
Conformal Field Theory
url https://doi.org/10.1007/JHEP12(2021)002
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AT christopherwaddell lookingforandnotfindingabulkbrane
AT davidwakeham lookingforandnotfindingabulkbrane