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Probing the Inflaton Potential with SKA

Tanmoy Modak, Tilman Plehn, Lennart Röver, Björn Malte Schäfer

SciPost Phys. Core 5, 037 (2022) · published 18 July 2022


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.

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