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Interpolating geometries and the stretched dS$_2$ horizon

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arxiv 2209.06144 v2 pith:EP7W6MBO submitted 2022-09-13 hep-th gr-qc

Dionysios Anninos , Eleanor Harris This is my paper · ORCID
classification hep-thgr-qc
keywords modelsnear-adsasymptoticallyboundarygeometrieshorizonstretchedboundaries
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abstract

We investigate dilaton-gravity models whose solutions contain a large portion of the static patch of dS$_2$. The thermodynamic properties of these theories are considered both in the presence of a finite Dirichlet wall, as well as for asymptotically near-AdS$_2$ boundaries. We show that under certain circumstances such geometries, including those endowed with an asymptotically near-AdS$_2$ boundary, can be locally and even globally thermodynamically stable within particular temperature regimes. First order phase transitions reminiscent of the Hawking-Page transition are discussed. For judiciously chosen models, the near-AdS$_2$ boundary can be viewed as a completion of the stretched cosmological dS$_2$ horizon. We speculate on candidate microphysical models.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    Pure dS3 quantum gravity is claimed to be dual to the complex Liouville string's matrix integral, with integrated cosmological correlators equal to resolvent correlators and de Sitter entropy equal to 2 log of the eig...

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    Timelike Liouville disk path integrals in fixed K-representation produce Hartle-Hawking-like states, a conjecture for all-loop wavefunctions, and a K-independent inner product for 2D quantum cosmology.

  3. Gravitational Observatories in AdS$_4$

    hep-th 2024-12 conditional novelty 6.0 of 10

    With conformal boundary conditions in AdS4, linearized gravity has a new boundary Weyl mode; for a spherical boundary the mode has complex frequencies (exponential growth) at large angular momentum, while for a planar...

  4. Quantum de Sitter Entropy and Sphere Partition Functions: A-Hypergeometric Approach to Higher Loop Corrections

    hep-th 2024-11 conditional novelty 6.0 of 10

    Scalar and vector Feynman integrals on the sphere are mapped to A-hypergeometric (GKZ) systems via embedding space propagators, enabling algorithmic higher-loop computations.

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