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Abstract:
Gravitational waves opened a new window to uncover some of the universe’s biggest mysteries and became a game-changer for astronomy. The primordial quantum fluctuations are the seeds of primordial black holes (PBHs) which may explain all dark matter with the mass around 1021 g. Accompanied with the production of PBHs, scalar induced secondary gravitational waves (SIGWs) are also generated. SIGWs can be detected by future space based gravitational wave observatory like LISA, Taiji and TianQin, or by Pulsar Timing Arrays. Therefore, the observations of PBHs and SIGWs provide us a new tool to probe inflationary physics. In this talk, I will discuss a new mechanism to produce PBHs and SIGWs. In particular, in this mechanism, Higgs field is responsible for the mass of matter, inflation, the productions of PBH dark matter and SIGWs.
Biography：
龚云贵，华中科技大学/宁波大学教授，美国贝勒大学客座教授。1991年于华中理工大学获得学士学位，1994年在中国科学院理论物理研究所获得硕士学位，2001年获得美国德克萨斯州立大学奥斯汀分校博士,师从SU(3)理论创始者之一、爱因斯坦奖获得者、美国科学院院士Ne’eman教授。主要从事相对论引力与宇宙学的研究工作。在Nature Astronomy, PRL等国际高水平学术期刊上发表了150余篇学术论文，出版宇宙学教材一部，发表的学术论文在高能数据库inspirehep中被引用7900余次，其中17篇论文被引用超过100次，h指数为46，入选了全球前10万（前2%）科学家、2020及2022中国高被引学者。主持了包括国家重点研发课题、自然科学基金重点项目在内的多项国家及省部级科研项目。先后荣获教育部新世纪优秀人才计划、中国侨界双百贡献奖（创新人才奖）、重庆市自然科学一等奖等奖项及荣誉称号。
Alternative online link: https://meeting.tencent.com/dm/OwYhbjQnbIE4
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