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Quadrupolar radiation in de Sitter: Displacement memory and Bondi metric

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arxiv 2309.02081 v3 pith:4Z7NNKZR submitted 2023-09-05 gr-qc hep-th

Geoffrey Compère , Sk Jahanur Hoque , Emine Şeyma Kutluk This is my paper · ORCID
classification gr-qchep-th
keywords bondidisplacementfuturegaugeinfinitymemorymetricquadrupolar
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abstract

We obtain the closed form expression for the metric perturbation around de Sitter spacetime generated by a matter source below Hubble scale both in generalized harmonic gauge and in Bondi gauge up to quadrupolar order in the multipolar expansion, including both parities (i.e. both mass and current quadrupoles). We demonstrate that such a source causes a displacement memory effect close to future infinity that originates, in the even-parity sector, from a $\Lambda$-BMS transition between the two non-radiative regions of future infinity.

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Forward citations

Cited by 6 Pith papers

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

  1. The $SO(1,4)$ flux-balance laws of de Sitter at quadrupolar order

    gr-qc 2024-11 conditional novelty 7.0 of 10

    All ten SO(1,4) flux-balance laws for quadrupolar perturbations around de Sitter are derived, including new linear momentum and boost formulas, and the flat limit is recovered.

  2. 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.

  3. Twisting asymptotically-flat spacetimes

    gr-qc 2025-11 conditional novelty 6.0 of 10

    Twisting asymptotically-flat spacetimes are brought into a generalized Bondi gauge with finite radial expansion, producing new flux-balance laws, Carroll-boost symmetries, and finite supertranslated Kerr–Taub–NUT metrics.

  4. Gauge Symmetries, Exact Symmetries and Conserved Charges in Minimal Massive Gravity

    hep-th 2025-07 conditional novelty 6.0 of 10

    Minimal Massive Gravity has three gauge symmetries, and a newly constructed transformation generates exact symmetries and a conserved charge in a restricted parameter limit.

  5. Field-dependent diffeomorphisms and the transformation of surface charges between gauges

    hep-th 2024-12 conditional novelty 6.0 of 10

    The Weyl charge in (A)dS3 gravity is kinematical: it can be toggled on or off by a field-dependent diffeomorphism between Bondi-Sachs and Fefferman-Graham gauges.

  6. 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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