【10.25; Seminar】2024年粒子天体物理重点实验室系列学术报告 #50：Explore the Unknown Universe from X-ray and Cosmic Microwave Background

时间/Time: 10月25日下午14:00 / Friday, October 25th at 14:00

地点/Location: 主楼511会议室/Meeting Room 511, Main Building

报告人/Speaker: 周雨（日本高能加速器研究机构 / Yu Zhou, Japan High Energy Accelerator）

题目/Title: Explore the Unknown Universe from X-ray and Cosmic Microwave Background

主持人/Host: 闫代康/ Daikang Yan

摘要/Abstract：

Though concordance Lambda-CDM cosmology has been a triumph since past decades, there are still significant questions remaining. To make groundbreaking discoveries, we need to develop the cutting-edge technology – specifically, Transition-edge sensor (TES) – for space mission. I will demonstrate the complexity in soft diffuse X-ray background study through my work on background spatial power spectrum analysis, and explain why we need the TES application in space mission, such as the Hot Universe Baryon Surveyor (HUBS) project, to advance the field. TES technology is also utilized in CMB experiment, such as the LiteBIRD, JAXA’s strategic L-class satellite mission aimed at searching for the evidence of cosmic inflation and primordial gravitational wave from the CMB B-mode polarization signal. I will introduce the key technologies related to TES and its applications in space mission through my work with HUBS and LiteBIRD project.

个人简介/Bibliography:

Dr. Yu Zhou is a postdoctoral fellow at KEK (High Energy Accelerator Research Organization) in Japan. She obtained the bachelor and PhD degree from Tsinghua University. From year 2015 to 2017, she was a visiting PhD student at the University of Wisconsin-Madison to acquire the experience working on cryogenic experiments and Transition-edge sensor. In 2017-2019, she worked on TES development for HUBS project in Tsinghua Cryo-lab. In 2019-2022, she is an Areospace Project Research Associate in JAXA studying astronomy and astrophysics for future space mission. Since 2022, she joined JAXA’s L-class satellite project, LiteBIRD, at KEK.