Title: Probing Cosmic Inflation and Quantum Gravity with the LiteBIRD CMB Polarization Survey

Speaker: Masashi Hazumi (QUP, KEK, Japan)

Time: 2:00pm, Jun 26 (Monday) 2023

Location: 理科楼302

Abstract: LiteBIRD is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD as a strategic large-class (L-class) mission, with an expected launch around 2030 using JAXA's H3 rocket.

LiteBIRD will orbit the Sun-Earth Lagrangian point L2, where it will map the cosmic microwave background (CMB) polarization over the entire sky for three years. The primary scientific objective of LiteBIRD is to search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The LiteBIRD measurements will also provide insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. The LiteBIRD collaboration is international, with members from Japan, Europe, and North America. In this talk, I provide an overview of the LiteBIRD project.

Bio: Masashi Hazumi 目前是日本 QUP (International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles) 主任，也是原初引力波卫星项目 Litebird 的首席科学家。