29 citations · 89 across the 6 of their papers we have counts for
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astro-ph.CO2022★ 21 cited
Probing Axions through Tomography of Anisotropic Cosmic Birefringence
Alessandro Greco, Nicola Bartolo, Alessandro Gruppuso
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-mot…
astro-ph.CO2022★ 29 cited
Cosmic Birefringence: Cross-Spectra and Cross-Bispectra with CMB Anisotropies
Alessandro Greco, Nicola Bartolo, Alessandro Gruppuso
Parity-violating extensions of Maxwell electromagnetism induce a rotation of the linear polarization plane of photons during propagation. This effect, known as cosmic birefringence…