| Speaker: | Marta Monelli (Kavli IPMU) |
|---|---|
| Title: | Probing fundamental physics with CMB polarization and beyond |
| Date (JST): | Mon, Apr 20, 2026, 11:00 - 12:00 |
| Place: | Lecture Hall |
| Abstract: |
The Cosmic Microwave Background (CMB) has played a crucial role in establishing the standard cosmological model (ΛCDM) and continues to offer a unique window onto fundamental physics. In particular, current and upcoming experiments mark a transition toward an era in which polarization measurements play a leading role, providing access to key open questions such as the physics of inflation and the nature of the dark sector through primordial B modes and cosmic birefringence. These signals are extremely faint and lie beneath much stronger foregrounds, instrumental noise, and systematic effects, requiring a detailed understanding of the full chain from the sky to cosmological observables. In this talk, I present my work on enabling CMB polarization science through realistic end-to-end simulations. I introduce a high-fidelity simulation framework and show how systematic effects propagate through the analysis pipeline and impact cosmological parameters. I then discuss how these approaches can be used to obtain robust constraints on fundamental physics and outline directions for future work. |
