arXiv:2407.03577·v2·Cosmology and Nongalactic Astrophysics
Inflation 2024
Deng Wang (Instituto de Fisica Corpuscular, CSIC-Universitat de Valencia)🇪🇸
Abstract
Inflation as the leading paradigm depicting the very early universe physics could leave imprints on the cosmic microwave background (CMB) radiation. Using currently available CMB observations, we give the tightest constraints on inflation so far. We discuss the theoretical implications of our results including the energy scale of inflation, inflaton field excursion, Hubble expansion rate during inflation, equation of state of inflation, primordial tensor non-Gaussianity, primordial tensor power spectrum, B-mode anisotropy and inflationary gravitational wave background.
Comments: Major revision. Replacement due to numerical bugs found in codes. Conclusion changed. Only a strong upper bound on r is given