Center for Theoretical Physics of the Universe (CTPU-PTC)

Cosmic Birefringence and Electroweak Axion Dark Energy

Name: Cosmic Birefringence and Electroweak Axion Dark Energy
Start: 2021-12-01T16:00:00+09:00
End: 2021-12-01T17:00:00+09:00
Location: zoom meeting

by Gongjun Choi (CERN)

Wednesday 1 Dec 2021, 16:00 → 17:00 Asia/Seoul

zoom meeting

Description

In this talk, we discuss the electroweak (EW) axion quintessence dark energy in light of the recently reported non-zero rotation angle of the cosmic microwave background (CMB) linear polarization β=0.35±0.14deg. We further discuss the model's prediction on the equation of state of EW axion dark energy with the aid of the cosmic birefringence.