Cross-correlation between CMB B-modes and Faraday Rotation as a Novel Probe of Primordial Magnetic Fields

arXiv:2609.32171 · astro-ph.CO · Submitted 2026-09-26 · Read on arXiv

astro-ph.CO

Submitted: 2026-09-26

Updated: 2026-09-26

Terminology

• Bispectrum — 46× in this paper · explained in 3 episodes
• Primordial Magnetic Fields — 3× in this paper · explained in 2 episodes
• Anisotropy — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Consistency — 1× in this paper · explained in 3 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• G in the Simons Observatory — 1× in this paper
• Hubble Tension — 1× in this paper · explained in 9 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Phase Transitions — 1× in this paper · explained in 2 episodes
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes
• Wilkinson Microwave Anisotropy Probe — 1× in this paper

Sources

• Cosmological Magnetic Fields: Their Generation, Evolution and Observation
• Primordial magnetogenesis
• Progress on Cosmological Magnetic Fields
• Evidence for strong extragalactic magnetic fields from Fermi observations of TeV blazars
• Extreme TeV blazars and the intergalactic magnetic field
• Fermi/LAT observations of 1ES 0229+200: implications for extragalactic magnetic fields and background light
• Lower Bounds on Magnetic Fields in Intergalactic Voids from Long-Term GeV-TeV Light Curves of the Blazar Mrk 421
• Properties of the Intergalactic Magnetic Field Constrained by Gamma-ray Observations of Gamma-Ray Bursts
• Search for CP Violating Signature of Intergalactic Magnetic Helicity in the Gamma Ray Sky
• Intergalactic magnetic field spectra from diffuse gamma rays
• Parity-odd correlators of diffuse gamma rays and intergalactic magnetic fields
• Evolution of Magnetic Fields in Freely Decaying Magnetohydrodynamic Turbulence
• Relieving the Hubble tension with primordial magnetic fields
• Primordial magnetic fields and the Hubble tension
• Hints of Primordial Magnetic Fields at Recombination and Implications for the Hubble Tension
• A magnetized completion of the $\Lambda$CDM paradigm
• Magnetized CMB observables: a dedicated numerical approach
• Generalized CMB initial conditions with pre-equality magnetic fields
• Effects of a Primordial Magnetic Field on Low and High Multipoles of the CMB
• The Impact of Stochastic Primordial Magnetic Fields on the Scalar Contribution to Cosmic Microwave Background Anisotropies

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