Probing the Inflaton Potential with SKA

Abstract

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.

Matches with published version

References in corpus (14)

• Cosmology at Low Frequencies: The 21 cm Transition and the High-Redshift Universe
• How accurately can 21 cm tomography constrain cosmology?
• 21 cm fluctuations from inhomogeneous X-ray heating before reionization
• The CMBR fluctuations from HI perturbations prior to reionization
• The Fast Fourier Transform Telescope
• The Cross-Correlation of High-Redshift 21 cm and Galaxy Surveys
• The trispectrum of 21-cm background anisotropies as a probe of primordial non-Gaussianity
• What do WMAP and SDSS really tell about inflation?
• The impact of non-Gaussianity on the error covariance for observations of the Epoch of Reionization 21-cm power spectrum
• Gravitational Lensing of Cosmological 21cm Emission
• Isocurvature bounds on axion-like particle dark matter in the post-inflationary scenario
• The Dark Ages of the Universe and Hydrogen Reionization
• The Theory and Simulation of the 21-cm Background from the Epoch of Reionization
• Modelling the 21 cm Signal From the Epoch of Reionization and Cosmic Dawn