Primordial tensor mode from the neutrino sector

arXiv:2607.15335 · astro-ph.CO · Submitted 2026-07-16 · Read on arXiv

Shohei Saga, Shuichiro Yokoyama

astro-ph.CO

Submitted: 2026-07-16

Comments: 9 pages, 4 figures

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

Terminology

• Decoupling — 3× in this paper · explained in 2 episodes
• Anisotropy — 1× in this paper · explained in 3 episodes
• Boltzmann Equation — 1× in this paper · explained in 2 episodes
• Clustering — 1× in this paper · explained in 2 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Markov-chain Monte Carlo — 1× in this paper
• Primordial Magnetic Fields — 1× in this paper · explained in 2 episodes

Sources

• An All-Sky Analysis of Polarization in the Microwave Background
• Statistics of Cosmic Microwave Background Polarization
• CMB Anisotropies: Total Angular Momentum Method
• Planck 2018 results. VI. Cosmological parameters
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• LiteBIRD: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization
• Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey
• Cosmological perturbations
• Planck 2013 results. XXII. Constraints on inflation
• Kinetic vs. Thermal-Field-Theory Approach to Cosmological Perturbations
• Observable primordial vector modes
• Constraint on the primordial vector mode and its magnetic field generation from seven-year Wilkinson Microwave Anisotropy Probe Observations
• Constraining primordial vector mode from B-mode polarization
• Resurrecting Gravitational Vector Modes and their Magnetogenesis
• The Status of Gravitational Vector Perturbations with Recent CMB Data
• Revisiting constraints on primordial vector modes and implications for sourced magnetic fields and observed $EB$ power spectrum
• Massive Neutrinos and Magnetic Fields in the Early Universe
• CMB anisotropies from primordial inhomogeneous magnetic fields
• Efficient Computation of CMB anisotropies in closed FRW models
• Planck 2018 results. V. CMB power spectra and likelihoods

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