de Sitter Teukolsky waves

2024/05/17 by Sk Jahanur Hoque, Harsh, Hoque, Sk Jahanur +4 · 1 citation
Engineering · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #Optical Polarization and Ellipsometry

paper · pdf · doi:10.48550/arxiv.2405.10777

openalex publication_date 2024/05/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present de Sitter Teukolsky waves -- linearised quadrupolar gravitational waves in the transverse-traceless gauge in de Sitter spacetime. In the cosmological constant Λ going to zero limit, our solutions match to Teukolsky solutions. For non-zero Λ, we compare our solutions to the wider literature, where different authors have constructed linearised gravitational perturbations in de Sitter spacetime with varied motivations. For de Sitter Teukolsky waves, we compute the energy flux across future timelike infinity I⁺ and show that it is manifestly positive.

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• Conformal Einstein equation and symplectic flux with a positive cosmological constant

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