2020年
12/10
開催
開催日時
2020/12/10（木）12:30～13:30
開催場所
Zoom
講演者
南 雄人 氏 大阪大学 核物理研究センター
言語
English
詳細ページ
お問い合わせ
tsekiguc-AT-post.kek.jp
概要
Polarised light of the cosmic microwave background, the remnant light of the Big Bang, is sensitive to parity-violating physics, cosmic birefringence. In this presentation we report on a new measurement of cosmic birefringence from polarisation data of the European Space Agency (ESA)’s Planck satellite. The statistical significance of the measured signal is 2.4 sigma. If confirmed with higher statistical significance in future, it would have important implications for the elusive nature of dark matter and dark energy.