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Bottom-up holographic models for cosmology Waddell, Chris

Abstract

In this note, we investigate some simple generalizations of a bottom-up holographic approach to cosmology introduced in arXiv:1810.10601. Our models utilize the Karch/Randall/Takayanagi ansatz for the gravitational dual of a boundary conformal field theory, involving pure AdS gravity and an end-of-the-world brane. Following a suggestion made in arXiv:2102.05057, we consider models with an additional interface brane in the bulk. We find that solutions with a viable cosmological interpretation exist only if our model is further generalized, for example by including an Einstein-Hilbert term in the ETW brane action. The physical validity of such models is discussed from the perspective of the effective theory.

Item Metadata

Title
Bottom-up holographic models for cosmology
Creator
Waddell, Chris
Publisher
Springer Berlin Heidelberg
Date Issued
2022-09-21
Description
In this note, we investigate some simple generalizations of a bottom-up holographic approach to cosmology introduced in arXiv:1810.10601. Our models utilize the Karch/Randall/Takayanagi ansatz for the gravitational dual of a boundary conformal field theory, involving pure AdS gravity and an end-of-the-world brane. Following a suggestion made in arXiv:2102.05057, we consider models with an additional interface brane in the bulk. We find that solutions with a viable cosmological interpretation exist only if our model is further generalized, for example by including an Einstein-Hilbert term in the ETW brane action. The physical validity of such models is discussed from the perspective of the effective theory.
Subject
AdS-CFT Correspondence; Boundary Quantum Field Theory
Genre
Article
Type
Text
Language
eng
Date Available
2023-10-12
Provider
Vancouver : University of British Columbia Library
Rights
Attribution 4.0 International (CC BY 4.0)
DOI
10.14288/1.0437109
URI
http://hdl.handle.net/2429/86126
Affiliation
Science, Faculty of; Physics and Astronomy, Department of
Citation
Journal of High Energy Physics. 2022 Sep 21;2022(9):176
Publisher DOI
10.1007/JHEP09(2022)176
Peer Review Status
Reviewed
Scholarly Level
Graduate
Copyright Holder
The Author(s)
Rights URI
http://creativecommons.org/licenses/by/4.0/
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DSpace

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Attribution 4.0 International (CC BY 4.0)