Recent results and perspectives on cosmology and fundamental physics from microwave surveys

TL;DR

Recent high-precision microwave surveys have advanced our understanding of cosmology and fundamental physics, providing insights into inflation, neutrino properties, and tests of fundamental principles, while highlighting future observational prospects.

Contribution

This paper reviews recent microwave survey results, emphasizing new constraints on cosmological parameters, inflationary physics, neutrino masses, and tests of fundamental physics.

Findings

High-precision CMB data constrains cosmological parameters.

Galaxy surveys and CMB cross-correlations inform inflationary models.

Cosmological bounds on neutrino masses and axion parameters.

Abstract

Recent cosmic microwave background data in temperature and polarization have reached high precision in estimating all the parameters that describe the current so-called standard cosmological model. Recent results about the integrated Sachs-Wolfe effect from cosmic microwave background anisotropies, galaxy surveys, and their cross-correlations are presented. Looking at fine signatures in the cosmic microwave background, such as the lack of power at low multipoles, the primordial power spectrum and the bounds on non-Gaussianities, complemented by galaxy surveys, we discuss inflationary physics and the generation of primordial perturbations in the early Universe. Three important topics in particle physics, the bounds on neutrinos masses and parameters, on thermal axion mass and on the neutron lifetime derived from cosmological data are reviewed, with attention to the comparison with laboratory experiment results. Recent results from cosmic polarization rotation analyses aimed at testing the Einstein equivalence principle are presented. Finally, we discuss the perspectives of next radio facilities for the improvement of the analysis of future cosmic microwave background spectral distortion experiments.