Over the past decade, the disparity between the value of the cosmic expansion rate
determined directly from measurements of distance and redshift and that determined instead …

We revisit the evidence for CMB birefringence in the context of a rich Axiverse. Using
probability density functions (PDFs) for various axion parameters, such as the mass and …

A bstract The recent analysis of the Planck 2018 polarization data shows a nonzero isotropic
cosmic birefringence (ICB) that is not explained within the ΛCDM paradigm. We then explore …

Cosmic birefringence is the in-vacuo rotation of the linear polarization plane experienced by
photons of the Cosmic Microwave Background (CMB) radiation when theoretically well …

The evidence for a non-vanishing isotropic cosmic birefringence in recent analyses of the
CMB data provides a tantalizing hint for new physics. Domain wall (DW) networks have …

We consider the polarized Sunyaev-Zel'dovich (pSZ) effect for a tomographic probe of
cosmic birefringence, including all relevant terms of the pSZ effect in the cosmic microwave …

The cosmic microwave background (CMB) photons that scatter off free electrons in the large-
scale structure induce a linear polarization pattern proportional to the remote CMB …

The power spectrum of cosmic microwave background lensing is a powerful tool for
constraining fundamental physics such as the sum of neutrino masses and the dark energy …

Joint analysis of cosmic microwave background (CMB) and large-scale structure at high
redshifts provide new and unique windows into unexplored epochs of early structure …

Missions like NASA's Imaging X-ray Polarimetry Explorer (IXPE) are poised to provide an
unprecedented view of the Universe in polarized X-rays. Polarization probes physical …