Massive holographic QFTs in de Sitter

Penín, José Manuel; Skenderis, Kostas; Withers, Benjamin

doi:10.21468/SciPostPhys.12.6.182

SciPost Physics

Massive holographic QFTs in de Sitter

José Manuel Penín, Kostas Skenderis, Benjamin Withers

SciPost Phys. 12, 182 (2022) · published 1 June 2022

doi: 10.21468/SciPostPhys.12.6.182
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Abstract

We study strongly coupled mass-deformed-CFT on a fixed de Sitter spacetime in three dimensions via holography. We elucidate the global causal structure of the four-dimensional spacetime dual to the de Sitter invariant vacuum state. The conformal boundaries of de Sitter appear as spacelike defects sourced by the mass deformation, which extend into the bulk as curvature singularities in AdS. We compute all one- and two-point functions of the deformed-CFT stress tensor and a scalar operator order-by-order in the mass deformation for a simple holographic model. These correlation functions admit a spectral representation as a sum of simple poles corresponding to normalisable modes in the bulk.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.12.6.182
TI  - Massive holographic QFTs in de Sitter
PY  - 2022/06/01
UR  - https://scipost.org/SciPostPhys.12.6.182
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 12
IS  - 6
SP  - 182
A1  - Penín, José Manuel
AU  - Skenderis, Kostas
AU  - Withers, Benjamin
AB  - We study strongly coupled mass-deformed-CFT on a fixed de Sitter spacetime in three dimensions via holography. We elucidate the global causal structure of the four-dimensional spacetime dual to the de Sitter invariant vacuum state. The conformal boundaries of de Sitter appear as spacelike defects sourced by the mass deformation, which extend into the bulk as curvature singularities in AdS. We compute all one- and two-point functions of the deformed-CFT stress tensor and a scalar operator order-by-order in the mass deformation for a simple holographic model. These correlation functions admit a spectral representation as a sum of simple poles corresponding to normalisable modes in the bulk.
ER  -

@Article{10.21468/SciPostPhys.12.6.182,
	title={{Massive holographic QFTs in de Sitter}},
	author={José Manuel Penín and Kostas Skenderis and Benjamin Withers},
	journal={SciPost Phys.},
	volume={12},
	pages={182},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.12.6.182},
	url={https://scipost.org/10.21468/SciPostPhys.12.6.182},
}

Cited by 5

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¹ ² José Manuel Penín,
¹ Kostas Skenderis,
¹ Benjamin Withers

Funders for the research work leading to this publication