15 citations · 24 across the 4 of their papers we have counts for
4 papers
Stairway to Axions: the cross-correlation of birefringence and galaxies from NPIPE and Quaia
S. Arcari, N. Bartolo, G. Fabbian +6
We present the first measurement of the cross-correlation between anisotropic birefringence and galaxy number counts, utilizing polarization data from Planck NPIPE and the Quaia qu…
Breaking parity: the case of the trispectrum from chiral scalar-tensor theories of gravity
Tommaso Moretti, Nicola Bartolo, Alessandro Greco
Recently, possible hints of parity violation have been observed in the connected galaxy four-point correlation function. Although the true origin of the signal from the analysis ha…
Conversations in the dark: cross-correlating birefringence and LSS to constrain axions
S. Arcari, N. Bartolo, A. Greco +3
Unveiling the dark sector of the Universe is one of the leading efforts in theoretical physics. Among the many models proposed, axions and axion-like particles stand out due to the…
A New Solution for the Observed Isotropic Cosmic Birefringence Angle and its Implications for the Anisotropic Counterpart through a Boltzmann Approach
Alessandro Greco, Nicola Bartolo, Alessandro Gruppuso
Cosmic Birefringence (CB) is a phenomenon in which the polarization of the Cosmic Microwave Background (CMB) radiation is rotated as it travels through space due to the coupling be…