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On effective field theory with celestial duals

报告人任乐成 博士(布朗大学)

报告时间2023年06月02日(周五)下午15:30-16:30

报告地点北洋园校区49教210室

报告摘要

We compute the deformation of the $w_{1+\infty}$ algebra of soft graviton, gluon and scalar currents in the Celestial CFT due to non-minimal couplings. Such deformed algebra shares some similarities with the $W_{1+\infty}$ algebra but has essential differences. We find that the Jacobi identity of the algebra, as well as the associativity of the OPE between these soft current operators, are satisfied only when the spectrum and couplings of the theory obey certain constraints. We also study the effect of these constraints on the amplitudes in the 4d bulk theory.

参考文献

[1] J. Mago, L. Ren, A.Y. Srikant and A. Volovich, Deformed $w_{1+\infty}$ Algebras in the Celestial CFT, arXiv:2111.11356 [hep-th].
[2] L. Ren, M. Spradlin, A. Yelleshpur Srikant and A. Volovich, On effective field theories with celestial duals, JHEP 08 (2022), 251;

报告人简介

2015.9 -- 2019.7 北京师范大学,物理学学士
2019.9 -- 布朗大学,物理学博士(导师:Dr. Anastasia Volovich)

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