Abstract LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation
from cosmic background Radiation Detection, is a space mission for primordial cosmology …

We review recent developments and results in testing general relativity (GR) at cosmological
scales. The subject has witnessed rapid growth during the last two decades with the aim of …

We search for evidence of parity-violating physics in the Planck 2018 polarization data and
report on a new measurement of the cosmic birefringence angle β. The previous …

We present the temperature and polarization angular power spectra of the CMB measured
by the Atacama Cosmology Telescope (ACT) from 5400 deg 2 of the 2013–2016 survey …

The Simons Observatory (SO) is a new cosmic microwave background experiment being
built on Cerro Toco in Chile, due to begin observations in the early 2020s. We describe the …

MontePython is a parameter inference package for cosmology. We present the latest
development of the code over the past couple of years. We explain, in particular, two new …

A stochastic background of gravitational waves could be created by the superposition of a
large number of independent sources. The physical processes occurring at the earliest …

This paper presents the Planck 2015 likelihoods, statistical descriptions of the 2-point
correlationfunctions of the cosmic microwave background (CMB) temperature and …

The search for the curl component (B mode) in the cosmic microwave background (CMB)
polarization induced by inflationary gravitational waves is described. The canonical single …

The production of a stochastic background of gravitational waves is a fundamental
prediction of any cosmological inflationary model. The features of such a signal encode …