【直播】中国科大寰宇开物天文讲坛 | 中国科大蔡一夫教授：声速共振宇宙学简介

KouShare 蔻享学术

本系列报告由中国科学技术大学天文学系主办，于2021年4月27日16:00开始，授权蔻享学术进行网络直播。

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声速共振宇宙学简介

报告人

蔡一夫教授中国科学技术大学

时间

2021年4月27日 16:00

Primordial black holes (PBHs) are widely considered as a hypothetical candidate of dark matter. However, the formation and astrophysical effects of PBHs still remain unclear. To gain the insights from the theoretical perspective, we recently proposed a novel mechanism of the sound speed resonance (SSR) cosmology that produces PBHs efficiently. I will briefly review the PBHs and the SSR mechanism and summarize what we have learned in this subject so far. I will also introduce the recent work on the application of the SSR mechanism into the stochastic gravitational waves which are expected to be a new probe for new physics in the early universe.

报告人简介

图 | 蔡一夫

Yi-Fu Cai is a professor of physics and astronomy at the University of Science and Technology of China (USTC). He received the PhD degree in theoretical physics at the Institute of High Energy Physics in 2010. He worked as a postdoc at Arizona State University and McGill University until 2015. He was selected into the Chinese National Youth Talents Program in 2015 and became a faculty at USTC. His particle cosmology group at USTC is responsible for the scientific goals of the AliCPT project associated with cosmological models. His research focuses on fundamental questions for cosmology, namely, the big bang singularity, the origin and destiny of the universe, the cosmological perturbation theory and the CMB theory.

中国科大寰宇开物天文讲坛是由中国科学技术大学物理学院天文学系主办、蔻享学术协办的天文前沿学术讲坛，内容涉及行星、恒星、星系与活动星系、宇宙大尺度结构、宇宙学等天体物理前沿领域的最新研究进展，致力于为广大天文科研工作者与关注天文研究进展的人们提供一个学术交流与天文知识传播的平台。“寰宇”取自严济慈先生在1988年为科大创办30周年而题写的“创寰宇学府，育天下英才”，“开物”源于中国古代科学著作《天工开物》；“寰宇开物”寓意为力求通晓宇宙中万物——这是天文学研究的不懈追求。

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