Isotropic cosmic birefringence from early dark energy

Abstract

A tantalizing hint of isotropic cosmic birefringence has been found in the $EB$ cross-power spectrum of the cosmic microwave background (CMB) polarization data with a statistical significance of $3\sigma$. A pseudoscalar field coupled to the CMB photons via the Chern-Simons term can explain this observation. The same field may also be responsible for early dark energy (EDE), which alleviates the so-called Hubble tension. Since the EDE field evolves significantly during the recombination epoch, the conventional formula that relates $EB$ to the difference between the $E$- and $B$-mode auto-power spectra is no longer valid. Solving the Boltzmann equation for polarized photons and the dynamics of the EDE field consistently, we find that currently favored parameter space of the EDE model yields a variety of shapes of the $EB$ spectrum, which can be tested by CMB experiments.

7 pages, 4 figures, 1 table. (v2) Expanded discussion on forecasts for SO and CMB-S4. Accepted for publication in Phys. Rev. D

References in corpus (17)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• The trouble with $H_0$
• Early dark energy, the Hubble-parameter tension, and the string axiverse
• New Extraction of the Cosmic Birefringence from the Planck 2018 Polarization Data
• Cosmic Birefringence from Planck Data Release 4
• Rotation of Linear Polarization Plane and Circular Polarization from Cosmological Pseudoscalar Fields
• Effect on cosmic microwave background polarization of coupling of quintessence to pseudoscalar formed from the electromagnetic field and its dual
• Axions as Quintessence in String Theory
• Pseudoscalar perturbations and polarization of the cosmic microwave background
• Kilobyte Cosmic Birefringence from ALP Domain Walls
• Searching for Anisotropic Cosmic Birefringence with Polarization Data from SPTpol
• Fluctuations of cosmological birefringence and the effect on CMB B-mode polarization
• Searching for axion-like particles through CMB birefringence from string-wall networks
• Natural inflation with and without modulations in type IIB string theory
• Cosmic Birefringence: Cross-Spectra and Cross-Bispectra with CMB Anisotropies
• Consistency of the string inspired electroweak axion with cosmic birefringence

Cited by in corpus (25)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Redshift evolution of cosmic birefringence in CMB anisotropies
• Probing Axions through Tomography of Anisotropic Cosmic Birefringence
• Cosmic birefringence tomography with polarized Sunyaev Zel'dovich effect
• The QCD Axion: A Unique Player in the Axiverse with Mixings
• Can we explain cosmic birefringence without a new light field beyond Standard Model?
• Testing Quintessence Axion Dark Energy with Recent Cosmological Results
• A New Solution for the Observed Isotropic Cosmic Birefringence Angle and its Implications for the Anisotropic Counterpart through a Boltzmann Approach
• Parity-violating scalar trispectrum from a rolling axion during inflation
• Non-oscillating Early Dark Energy and Quintessence from Alpha-Attractors
• Does the fraction of dark matter diminish with early dark energy?
• Isotropic cosmic birefringence from string axion domain walls without cosmic strings, and DESI results
• Exact CMB B-mode power spectrum from anisotropic cosmic birefringence
• Observational evidence for Early Dark Energy as a unified explanation for Cosmic Birefringence and the Hubble tension
• Cosmic Birefringence from Neutrino and Dark Matter Asymmetries
• Tomographic constraint on anisotropic cosmic birefringence
• PROTOCALC, A W-band polarized calibrator for CMB Telescopes: application to Simons Observatory and CLASS
• Cosmic Birefringence from CP-Violating Axion Interactions
• Isotropic cosmic birefringence from an oscillating axion-like field
• Induced Cosmological Anisotropies and CMB Anomalies by a non-Abelian Gauge-Gravity Interaction
• Conversations in the dark: cross-correlating birefringence and LSS to constrain axions
• Improving Cosmic Birefringence Constraints via Delensing
• Chern Simons condensate from misaligned axions
• Constraints on Anisotropic Cosmic Birefringence from CMB B-mode Polarization
• BICEP/Keck XXI: Constraints on Early-Universe Parity Violation from Multipole-Dependent Birefringence