报告题目：Holographic correlators and emergent Parisi-Sourlas supersymmetry 

报告人：周稀楠  博士（Princeton）

报告时间：2020 年 12 月 23 日（周三）10：00          

报告地点：在线报告（ 腾讯会议 ID : 988 683 901）

报告摘要：

In this talk, I will first review the recent progress in computing holographic four-point correlators in maximally supersymmetric CFTs. I will introduce the so-called Maximally R-symmetry Violating (MRV) limit, in which the Mellin amplitudes drastically simplify and become easy to compute. From the MRV limit, I will show that the full amplitudes can be reconstructed by using symmetires. This gives a complete answer to all tree-level four-point functions in all three maximally supersymmetric backgrounds AdS4xS7, AdS5xS5, and AdS7xS4. In the second part of my talk, I will point out that these results have surprising properties. The Mellin amplitudes exhibit an emergent dimensional reduction structure, which allows them to be expressed in terms of only scalar exchange amplitudes from lower dimensional spacetimes. I will explain that this dimensional reduction structure is closely related to a holographic realization of the Parisi-Sourlas supersymmetry..

报告人简介：周稀楠，2013年在中科大获得本科学位；2013年-2018年在石溪大学杨振宁理论物理研究所获得博士学位；2018年至今在普林斯顿大学理论科学研究中心从事博士后研究工作。