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Generation of gravitational waves by generic sources in de Sitter space-time

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arxiv astro-ph/9812465 v1 pith:ENRQV6L2 submitted 1998-12-29 astro-ph gr-qchep-th

H.J. de Vega , J. Ramirez , N. Sanchez This is my paper · ORCID
classification astro-phgr-qchep-th
keywords gravitationalsitterspace-timefielddecompositionspectralbackgroundfunction
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We study the generation of gravitational radiation by sources moving in the de Sitter background. Exploiting the maximal symmetry and the conformal flatness of de Sitter space-time we prove that the derivation of this gravitational radiation can be done along the same lines as in Minkowski space-time. A gauge is chosen in which all the physical and unphysical modes of the graviton are those of a minimally coupled massless scalar field in de Sitter space-time and a massless field in Minkowski space-time. The graviton retarded Green's function and the Schwinger commutator function are computed in this gauge using Quantum Field Theory techniques. We obtain closed formulae for the spectral decomposition in frequencies of the linaearized gravitational field produced by the source, in terms of a suitable spectral decomposition of the source energy-momentum tensor. This spectral decomposition is dictated by the free (sourceless) gravitational wave modes in the de Sitter background

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Cited by 3 Pith papers

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

  1. Octupolar Gravitational Radiation in de Sitter Spacetime

    gr-qc 2026-08 conditional novelty 6.0 of 10

    The metric perturbation from a localized source in de Sitter spacetime is derived at octupolar order in generalized harmonic gauge, including the cosmological tail, the first extension beyond quadrupole order.

  2. Cosmological perturbation theory of primordial compact sources

    gr-qc 2026-01 unverdicted novelty 5.0 of 10

    Exact hypergeometric Green's functions yield closed-form linearized metric perturbations from quadrupolar sources in power-law cosmologies.

  3. Linearized gravitational waves in de Sitter space-time

    gr-qc 2024-11 conditional novelty 4.0 of 10

    In linearized gravity on de Sitter space, the truncation inconsistency flagged by Compère, Hoque and Kutluk is traced to the particular solution failing the generalized harmonic gauge condition, with a homogeneous sol...

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