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astro-ph.CO2026
Distinguishing the origin of cosmic birefringence: dark energy, dark matter, and neutrino asymmetry
Lu Yin, Eiichiro Komatsu
Cosmic birefringence, the isotropic rotation of the plane of linear polarization of photons from sources at cosmological distances, can be generated by different parity-violating m…
astro-ph.CO2026
Joint constraints on cosmic birefringence and early dark energy from ACT, Planck, DESI, and PantheonPlus
Lu Yin, Guo-Hong Du, Tian-Nuo Li +1
With the increasing number of high-precision astronomical observations, physical quantities that were previously inaccessible to accurate calculations, such as cosmic birefringence…
astro-ph.CO2025
Constraints on Cosmic Birefringence from SPIDER, Planck, and ACT observations
Lu Yin, Shuhang Xiong, Joby Kochappan +2
The Early Dark Energy (EDE) model has been proposed as a candidate mechanism to generate cosmic birefringence through a Chern-Simons coupling between a dynamical scalar field and t…