报告题目：Causality constraints on corrections to Einstein gravity

报告人：厉岳洲 博士（加拿大McGill大学）

报告时间：2022年3月10日（周四）上午10:00-11:00

报告地点：在线报告（腾讯会议ID：831 649 815）

报告摘要：

Causality and unitarity as old principles, together with modern techniques, can put strong constraints on EFT. We think of modifications of Einstein gravity as low-energy gravity EFT, we will demonstrate how causality and unitarity can constrain the modifications by using dispersive sum rules of 2->2 amplitudes. Our bounds imply that gravitational interactions must shut off uniformly in the G->0 limit, and prove the scaling with higher-spin mass. We will also discuss possible experimental implications in the future.

参考文献：

[1] S. Caron-Huot and V. Van Duong, Extremal Effective Field Theories, J. High Energy Phys. 05 (2021) 280, [arXiv:2011.02957].

[2] S. Caron-Huot, D. Mazac, L. Rastelli and D. Simmons-Duffin, Sharp Boundaries for the Swampland, J. High Energy Phys. 07 (2021) 110, [arXiv:2102.08951].

[3] S. Caron-Huot, Y.-Z. Li, J. Parra-Martinez and D. Simmons-Duffin, Causality constraints on corrections to Einstein gravity, arXiv:2201.06602.

报告人简介：

厉岳洲，在天津大学理学院获得理论物理硕士学位，现于加拿大McGill大学博士在读，导师是 Simon Caron-Huot。从事共形场论自举、有效场论自举、散射振幅、AdS/CFT对应、黑洞物理与引力理论等多个方向的理论研究，发表相关研究论文18篇。曾连续两年获得国家硕士研究生奖学金与天津大学学生标兵称号。

报告链接：

https://www.bilibili.com/video/BV1tY41137Q6?spm_id_from=333.999.0.0