Study the nature of dynamical dark energy by measuring the CMB polarization rotation angle

arXiv:2511.04459 · astro-ph.CO, gr-qc, hep-ph, hep-th · Submitted 2026-08-20 · Read on arXiv

Hua Zhai, Si-Yu Li, Yang Liu, Yiwei Zhong, Hong Li, Yaqiong Li, Congzhan Liu, Mingzhe Li, Xinmin Zhang

astro-ph.CO, gr-qc, hep-ph, hep-th

Submitted: 2026-08-20

Updated: 2026-08-21

Comments: 16 pages,10 figures

Journal ref: JCAP 08 (2026) 008

DOI: 10.1088/1475-7516/2026/08/008

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

Terminology

Calibration — 27× in this paper · explained in 7 episodes
Aperture — 14× in this paper · explained in 1 episode
Anisotropic Cosmic Birefringence — 3× in this paper · explained in 1 episode
Dark Energy Spectroscopic Instrument — 3× in this paper
Degeneracy — 3× in this paper · explained in 3 episodes
Accuracy — 2× in this paper · explained in 1 episode
Anisotropy — 2× in this paper · explained in 3 episodes
ACT Data — 1× in this paper · explained in 1 episode
Bayesian Framework — 1× in this paper · explained in 3 episodes
Fisher Information — 1× in this paper · explained in 3 episodes
Gravitational Lensing — 1× in this paper · explained in 2 episodes
Markov Chain Monte Carlo — 1× in this paper
Nine-Year Wilkinson Microwave Anisotropy Probe — 1× in this paper
Quintessence — 1× in this paper · explained in 2 episodes
Robustness — 1× in this paper · explained in 5 episodes
Trace — 1× in this paper · explained in 2 episodes

Sources

Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6

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