主讲人单位 (Speaker's Institute): 天津大学

邀请人 (Invited by): 苗荣欣

时间 (Time): 星期三，2022/06/29-14：30-16：00

地点 (Location): 珠海校区天琴中心2316会议室/腾讯会议

摘要 (Abstract): 

We study correlation functions of D-branes and a supergravity mode in AdS, which are dual to structure constants of two sub-determinant operators with large charge and a BPS single-trace operator. Our approach is inspired by the large charge expansion of CFT and resolves puzzles and confusions in the literature on the holographic computation of correlation functions of heavy operators. In particular, we point out two important effects which are often missed in the literature; the first one is an average over classical configurations of the heavy state, which physically amounts to projecting the state to an eigenstate of quantum numbers. The second one is the contribution from wave functions of the heavy state. To demonstrate the power of the method, we first analyze the three-point functions in N=4 super Yang-Mills and reproduce the results in field theory from holography, including the cases for which the previous holographic computation gives incorrect answers. We then apply it to ABJM theory and make solid predictions at strong coupling. Finally we comment on possible applications to states dual to black holes and fuzzballs.

主讲人简介 (Speaker's CV): 

吴俊宝，天津大学教授。2001年本科毕业于北京大学，2006年于北京大学获得博士学位。2006年至2010年先后在意大利SISSA和韩国KIAS做博士后工作。2010年至2017年先后在中国科学院高能物理研究所和北京航空航天大学任副研究员，2017年加入天津大学，任教授。主要从事超弦理论和量子场论的研究，特别是规范/引力对应中的可积性结构、非局域算符及其全息描述、场论和弦论中散射振幅方面的研究。