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Soft Theorems in Gauge and Gravity Theories
2015-07-29  【 】【打印】【关闭
 

Institute of Theoretical Physics

Chinese Academy of Sciences

State Key Laboratory of Theoretical Physics

Seminar

 

Title

题目

Soft Theorems in Gauge and Gravity Theories

Speaker

报告人

刘正文

Affiliation

所在单位

中国人民大学

Date

日期

14:00, Jul.29 (星期三), 2015

Venue

地点

Conference Hall 322, ITP/理论物理所322报告厅

Abstract

摘要

In this talk I will review recent progress on soft limits of the scattering amplitudes in gauge and gravity theories, including single-soft-photon and -gluon limits up to sub-leading order and single-soft-graviton limit up to sub-sub-leading order, in particular at tree level. I will also discuss soft limits of the amplitudes in N=4 super Yang-Mills and N=8 supergravity in detail. In addition, other related topics will also be mentioned briefly, such as double-soft limits, the scattering equations and ambitwistor strings.
Interestingly, a lot of remarkable progress has also been made on the understanding of the soft theorem from the viewpoint of the symmetry principle. Pujian Mao will explore this topic in the next talk.

 
 
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