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The covariant graviton propagator in de Sitter spacetime

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arxiv gr-qc/0107036 v2 pith:XXWVO7X7 submitted 2001-07-10 gr-qc hep-th

Atsushi Higuchi , Spyros S. Kouris (Univ. of York) This is my paper · ORCID
classification gr-qchep-th
keywords propagatoralphabetacovariantgravitonsitterspacetimeapproach
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We consider the covariant graviton propagator in de Sitter spacetime in a gauge with two parameters, alpha and beta, in the Euclidean approach. We give an explicit form of the propagator with a particular choice of beta but with arbitrary value of alpha. We confirm that two-point functions of local gauge-invariant quantities do not increase as the separation of the two points becomes large.

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Cited by 5 Pith papers

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

  1. Out-of-time-ordered Correlators in de Sitter Revisited

    hep-th 2026-07 conditional novelty 7.0 of 10

    The de Sitter OTOC grows at the maximal Lyapunov rate 2π/β at tree level and at twice that rate in a massive-graviton-regulated double-scaling limit, with the growth traced to large diffeomorphisms in the graviton propagator.

  2. A remarkably simple covariant graviton propagator in Anti-de Sitter spacetime

    hep-th 2025-12 conditional novelty 7.0 of 10

    A special gauge choice (β=1, α=4(d+2)/d) yields a simple graviton propagator in (A)dS satisfying ∇^μ μ ∇^ν μ G_{μν,α'β'} = 0.

  3. 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.

  4. Note on the local calculation of decoherence of quantum superpositions in de Sitter spacetime

    hep-th 2024-12 conditional novelty 5.0 of 10

    A quantum superposition held at the center of de Sitter spacetime decoheres at constant rates proportional to the two-point correlation functions of scalar, electromagnetic, and gravitational fields near the cosmologi...

  5. Resummations for Inflationary Quantum Gravity

    gr-qc 2025-01 conditional novelty 3.0 of 10

    Secular logarithms from inflationary graviton loops can be resummed by combining a modified stochastic formalism with a modified renormalization group, though the pure-gravity sector remains incomplete.

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