首页 | 中心概况 | 人员构成 | 科学研究 | 学术活动 | 招贤纳士 | 资源下载 | 联系我们 | English Version 
 

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

关闭窗口

天津大学理学院 量子交叉研究中心   地址:天津津南区 雅观路135号 天津大学北洋园校区32楼146 
Center for Joint Quantum Studies, School of Science, Tianjin University     Address : Yaguan Road 135, Jinnan District, 300350 Tianjin, P. R. China