A half de Sitter holography
A bstract A long-standing and intriguing question is: does the holographic principle apply to
cosmologies like de Sitter spacetime? In this work, we consider a half dS spacetime wherein …
cosmologies like de Sitter spacetime? In this work, we consider a half dS spacetime wherein …
Coupling fields to 3D quantum gravity via Chern-Simons theory
A Castro, I Coman, JR Fliss, C Zukowski - Physical review letters, 2023 - APS
We propose a mechanism that couples matter fields to three-dimensional quantum gravity,
which can be used for theories with a positive or negative cosmological constant. Our …
which can be used for theories with a positive or negative cosmological constant. Our …
dS2 supergravity
D Anninos, PB Genolini, B Mühlmann - Journal of High Energy Physics, 2023 - Springer
A bstract We construct two-dimensional supergravity theories endowed with a positive
cosmological constant, that admit de Sitter vacua. We consider the cases of\(\mathcal {N}\) …
cosmological constant, that admit de Sitter vacua. We consider the cases of\(\mathcal {N}\) …
One-loop partition functions in -deformed AdS3
M He - Journal of High Energy Physics, 2024 - Springer
A bstract We study the geometry of\(T\overline {T}\)-deformed BTZ black hole and find it can
be regarded as a quotient of hyperbolic space. We then consider the massive scalar field …
be regarded as a quotient of hyperbolic space. We then consider the massive scalar field …
SYK Correlators from 2D Liouville-de Sitter Gravity
H Verlinde, M Zhang - arXiv preprint arXiv:2402.02584, 2024 - arxiv.org
We introduce and study a candidate gravity dual to the double scaled SYK model in the form
of an exactly soluble 2D de Sitter gravity model consisting of two spacelike Liouville CFTs …
of an exactly soluble 2D de Sitter gravity model consisting of two spacelike Liouville CFTs …
Complex saddles of Chern-Simons gravity and correspondence
We examine the black hole solutions of dS 3 gravity by applying the explicit dS 3/CFT 2
correspondence. The gravity theory is described by Chern-Simons theory with complex …
correspondence. The gravity theory is described by Chern-Simons theory with complex …
The universal one-loop effective action with gravity
R Larue, J Quevillon - Journal of High Energy Physics, 2023 - Springer
A bstract We complete the so-called Universal One-Loop Effective Action (UOLEA) with
effects of gravity and provide a systematic approach to incorporate higher dimensional …
effects of gravity and provide a systematic approach to incorporate higher dimensional …
Spinning up the spool: Massive spinning fields in 3d quantum gravity
R Bourne, A Castro, JR Fliss - arXiv preprint arXiv:2407.09608, 2024 - arxiv.org
We show how to incorporate massive spinning fields into the Euclidean path integral of three-
dimensional quantum gravity via its Chern-Simons formulation. The coupling of the spinning …
dimensional quantum gravity via its Chern-Simons formulation. The coupling of the spinning …
Real-time observables in de Sitter thermodynamics
M Grewal, YT Law - arXiv preprint arXiv:2403.06006, 2024 - arxiv.org
We study real-time finite-temperature correlators for free scalars of any mass in a $ dS_ {d+
1} $ static patch in any dimension. We show that whenever the inverse temperature is a …
1} $ static patch in any dimension. We show that whenever the inverse temperature is a …
A generalized Selberg zeta function for flat space cosmologies
A bstract Flat space cosmologies (FSCs) are time dependent solutions of three-dimensional
(3D) gravity with a vanishing cosmological constant. They can be constructed from a discrete …
(3D) gravity with a vanishing cosmological constant. They can be constructed from a discrete …