Detectability of the primordial origin of the gravitational wave background in the Universe

D. Polarski; J. Lesgourgues; S. Prunet & A. A. Starobinsky

arxiv: gr-qc/9906098 · v3 · submitted 1999-06-24 · 🌀 gr-qc · astro-ph· hep-ph

Detectability of the primordial origin of the gravitational wave background in the Universe

J. Lesgourgues , D. Polarski , S. Prunet & A. A. Starobinsky This is my paper

classification 🌀 gr-qc astro-phhep-ph

keywords primordialappearancebackgroundgravitationalpeakspowerableb-mode

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The appearance of peaks in various primordial fluctuation Fourier power spectra is a generic prediction of the inflationary scenario. We investigate whether future experiments, in particular the satellite experiment PLANCK, will be able to detect the possible appearance of these peaks in the B-mode polarization multipole power spectrum. This would yield a conclusive proof of the presence of a primordial background of gravitational waves.

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Planck 2018 results. X. Constraints on inflation
astro-ph.CO 2018-07 accept novelty 4.0

Updated Planck CMB measurements give ns = 0.9649 ± 0.0042, r < 0.056, confirm flatness at 0.4 percent, and show no evidence for scale-dependent features or non-slow-roll dynamics in the inflaton potential.