01/18
2023
Seminar
- Title题目 Quantum Spacetime (I) -- Unification of Matter and Spacetime
- Speaker报告人 寇谡鹏（北京师范大学）
- Date日期 2023年01月18日 14:00
- Venue地点 ITP South Building 6620
Abstract摘要
In the traditional theory of gravity, matter and spacetime are two different fundamental objects: matter moves in (flat or curved) spacetime, and also curves spacetime. Therefore, in classical gravity, Wheeler said that "Spacetime tells matter how to move and matter tells spacetime how to curve". In this paper entitled "Quantum Spacetime (I) - Unification of Matter and Spacetime", we found that the elementary particles constitute the basic blocks of spacetime, and the spacetime is really a multi-particle system and made of matter elementary particles. This is a very surprising conclusion, which shows that the unification of matter and spacetime, may have a profound impact on fundamental physics. Moreover, elementary particles (for example electrons) have a fixed size (4.1 × 10-97cm3)，rather than infinitely small points. Therefore, we say that in "Spacetime tells matter how to move and matter tells spacetime how to organize".
个人简介：寇谡鹏，北京师范大学物理系教授。1994年毕业于南京大学，后师从蒲富恪院士。于1999年博士毕业于中国科学院物理研究所。1999年至2001年在清华大学高等研究中心作博士后。2004年至2005年在国家留学基金委 -“杰出青年学者数学物理研修项目”资助下赴美国麻省理工学院物理系凝聚态理论研究组研修。2006年起任北京师范大学教授。研究领域涉及拓扑绝缘体、拓扑超导体、拓扑半金属、拓扑序和拓扑量子计算、非厄米物理、强关联电子系统、高温超导理论、冷原子物理等，共发表学术论文100余篇，其中Nature Communication 1篇,PRL4篇，PR40余篇。目前主要从事新奇拓扑量子态及其量子调控，尤其是非厄米问题的相关研究。
联系人 蔡荣根
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