报告题目：6d exotic supermultiplets: strongly coupled gravity,

symmetries and dynamics

报告人：张翼 博士（北京大学）

报告时间：2023年03月28日（周二）下午15:30-16:30

报告地点：北洋园校区49教210室

报告摘要：

Among the allowed representations of extended supersymmetry in six dimensions there are exotic chiral multiplets that, instead of a graviton, contain mixed-symmetry spin-2 tensor fields. Notably, the N = (4, 0) multiplet has a four index exotic graviton and when compactified on a circle, the 6d (4,0) multiplets give rise to the same degrees of freedom as five-dimensional supergravity theories with the same number of supersymmetries. It was conjectured that an interacting theory based on this multiplet could arise as a strong coupling limit of M-theory compactified on T6. In this talk, I will review the above conjecture and present some recent studies on this multiplets in terms of exceptional field theory, anomalies, gauge quantisations and fermionic higher-form symmetries.

报告人简介：

张翼于2015年本科毕业于德国海德堡大学，于2015年至2021年在巴黎高等师范学校以及法国原子能及替代能源委员会理论物理研究所（IPhT-Cea/Saclay）学习，并获得硕士、博士学位。之后受邀在德国马克斯普朗克引力所，波茨坦（MPI AEI Potsdam）访问、学习一年。现于北京大学高能中心担任博士后职务。目前主要研究兴趣包括:(1) 弦理论/M/F-理论的几何；(2) 超引力；(3)超对称量子场论；(4)反常；(5)广义对称性。