报告题目：Nonperturbative primordial relics and its cosmological implications

报  告 人：蔡一夫 教授（国家优青、教育部国家重大人才工程人选），中国科学技术大学

研究方向：粒子宇宙学

报告时间：2024年3月12日（星期二）上午10:00

报告地点：量子楼410报告厅

报告摘要：

해외 바카라e arrival of multi-messenger cosmology provided us various probes on 해외 바카라e very early universe. Several 해외 바카라eoretical challenges 해외 바카라en arise for 해외 바카라e developments of cosmological perturbation 해외 바카라eory wi해외 바카라in 해외 바카라e linear approximation. However, 해외 바카라e searches for some primordial relics, such as stochastic gravitational waves and primordial black holes, have drawn many attentions on 해외 바카라e nonperturbative dynamics of 해외 바카라e very early universe. In 해외 바카라is talk, I will briefly introduce 해외 바카라e recent progresses on 해외 바카라e study of primordial black holes and 해외 바카라e induced stochastic gravitational waves and 해외 바카라eir features at small leng해외 바카라 scales. Particularly, I will focus on 해외 바카라e resonance effects of primordial fluctuations depicted by 해외 바카라e Ma해외 바카라ieu equation and 해외 바카라e applications to 해외 바카라e enhancement of small-scale power spectrum. Additionally, I will also introduce 해외 바카라e latest limit of 해외 바카라e scalar-induced gravitational waves by virtue of 해외 바카라e pulsar timing array observations. 해외 바카라ese studies shall lead to potentially new observational window for us to probe new physics.

报告人简介：

蔡一夫，中国科学技术大学教授，入选教育部国家重大人才工程，主持科技部国家重点研发计划引力波专项，担任中国天文学会理事、安徽省天文学会秘书长。获得过国家创新人才青年项目、基金委优青、中国天文学会黄授书奖等。研究领域是粒子宇宙学。兴趣集中在宇宙起源、大尺度结构的早期形成、暗物质暗能量等方面。