Probing the Inflaton Potential with SKA

SKA will be a major step forward not only in astrophysics, but also in precision cosmology. We show how the neutral hydrogen intensity map can be combined with the Planck measurements of the CMB power spectrum, to provide a precision test of the inflaton potential. For a conservative range of redshi...

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Bibliographic Details
Published inSciPost physics core Vol. 5; no. 3; p. 037
Main Authors Modak, Tanmoy, Plehn, Tilman, Röver, Lennart, Schäfer, Björn Malte
Format Journal Article
LanguageEnglish
Published SciPost 01.07.2022
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Summary:SKA will be a major step forward not only in astrophysics, but also in precision cosmology. We show how the neutral hydrogen intensity map can be combined with the Planck measurements of the CMB power spectrum, to provide a precision test of the inflaton potential. For a conservative range of redshifts we find that SKA can significantly improve current constraints on the Hubble slow-roll parameters.
ISSN:2666-9366
2666-9366
DOI:10.21468/SciPostPhysCore.5.3.037