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Physical Review Letters|October 31, 2025
Resolving the Negative Effective Neutrino Mass Parameter with Cosmic BirefringenceToshiya Namikawa
Physical Review Letters|April 9, 2016
Anisotropies of Gravitational-Wave Standard Sirens as a New Cosmological Probe without Redshift InformationToshiya Namikawa, Atsushi Nishizawa, Atsushi Taruya
Physical Review Letters|February 16, 2026
nπ Phase Ambiguity of Cosmic BirefringenceFumihiro Naokawa, Toshiya Namikawa, Kai Murai, et al.
Physical Review Letters|October 6, 2023
Constraints on Early Dark Energy from Isotropic Cosmic BirefringenceJohannes R Eskilt, Laura Herold, Eiichiro Komatsu, et al.
Physical Review Letters|January 30, 2026
Unified and Consistent Structure Growth Measurements from Joint ACT, SPT, and Planck CMB LensingFrank J Qu, Fei Ge, W L Kimmy Wu, et al.
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