Free-streaming and coupled dark radiation isocurvature perturbations: constraints and application to the Hubble tension

DOI10.1088/1475-7516/2022/05/014zbMath1506.83056arXiv2107.09076OpenAlexW3186286151MaRDI QIDQ5099290

Yuhsin Tsai, Subhajit Ghosh, Soubhik Kumar

Publication date: 31 August 2022

Published in: Journal of Cosmology and Astroparticle Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2107.09076

zbMATH Keywords

cosmological perturbation theoryphysics of the early universecosmological parameters from CMBRinflation and CMBR theory

Mathematics Subject Classification ID

Point estimation (62F10) Relativistic cosmology (83F05) String and superstring theories in gravitational theory (83E30) Geometrodynamics and the holographic principle (83E05) Quantum optics (81V80) Classical and relativistic thermodynamics (80A10) Weak interaction in quantum theory (81V15) Constrained dynamics, Dirac's theory of constraints (70H45) Methods of global Riemannian geometry, including PDE methods; curvature restrictions (53C21) Propagation of singularities; initial value problems on manifolds (58J47)

Cites Work

• Inference from iterative simulation using multiple sequences
• Effects of cosmological moduli fields on cosmic microwave background
• Generating the curvature perturbation without an inflaton

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