Simultaneous inference of isotropic and anisotropic polarization rotation angles for next-generation cosmic microwave background experiments

arXiv:2607.17500 · astro-ph.CO · Submitted 2026-07-20 · Read on arXiv

Yue Zhang, Chang Feng, Sen Li, Filipe B. Abdalla

astro-ph.CO

Submitted: 2026-07-20

Comments: 18 pages, 9 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Fisher Matrix — 5× in this paper
• Anisotropic Cosmic Birefringence — 4× in this paper · explained in 1 episode
• Degeneracy — 4× in this paper · explained in 3 episodes
• Atacama Cosmology Telescope — 3× in this paper
• Calibration — 3× in this paper · explained in 7 episodes
• Gravitational Lensing — 2× in this paper · explained in 2 episodes
• Primordial Magnetic Fields — 2× in this paper · explained in 2 episodes
• Simons Observatory — 2× in this paper
• Anisotropy — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Fisher matrix formalism — 1× in this paper · explained in 2 episodes
• Forward modeling — 1× in this paper · explained in 2 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Quintessence — 1× in this paper · explained in 2 episodes
• South Pole Telescope — 1× in this paper
• Wilkinson Microwave Anisotropy Probe — 1× in this paper

Sources

• Quintessence and the Rest of the World
• Self-Calibration of BICEP1 Three-Year Data and Constraints on Astrophysical Polarization Rotation
• Probing CPT Violation with CMB Polarization Measurements
• POLARBEAR Constraints on Cosmic Birefringence and Primordial Magnetic Fields
• BICEP / Keck XVII: Line of Sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors
• The Atacama Cosmology Telescope: Constraints on Cosmic Birefringence
• Planck intermediate results. L. Evidence for spatial variation of the polarized thermal dust spectral energy distribution and implications for CMB $B$-mode analysis
• Is cosmic birefringence due to dark energy or dark matter? A tomographic approach
• Faraday Rotation of Microwave Background Polarization by a Primordial Magnetic Field
• Axion Dark Matter Detection with CMB Polarization
• Self-Calibration of CMB Polarization Experiments
• New Extraction of the Cosmic Birefringence from the Planck 2018 Polarization Data
• Cosmic Birefringence from Planck Data Release 4
• Improved Constraints on Cosmic Birefringence from the WMAP and Planck Cosmic Microwave Background Polarization Data
• Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6
• The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope
• Characterization of the Polarization Beam Response of SPT-3G Using Point Sources
• Peeling off foregrounds with the constrained moment ILC method to unveil primordial CMB $B$-modes
• Optimization of foreground moment deprojection for semi-blind CMB polarization reconstruction
• Inference of $B$-mode polarization in the presence of non-Gaussian foregrounds

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