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Projective Geometry of Scattering Amplitudes
2016-12-14  【 】【打印】【关闭

Institute of Theoretical Physics

Chinese Academy of Sciences

 Key Laboratory of Theoretical Physics

Seminar

Title

题目

Projective Geometry of Scattering Amplitudes

Speaker

报告人

Dr.Ellis Ye Yuan

Affiliation

所在单位

IAS-Princeton

Date

日期

2016年12月14日(星期三)下午 15:30 PM - 17:00

Venue

地点

ITP new building Room 6420/理论物理所新楼6420报告厅

Abstract

联系人

I will introduce a technique in studying the analytic structure of perturbative S-matrix of QFTs. The main idea is to associate Feynman integrals to objects in a projective space: polytopes and hypersurfaces. At one loop, this reveals a universal structure for all possible Feynman integrals, and gives rise to two simple algebraic algorithms to determine the integrals (as functions of the kinematics). I will also comment on the generalization to higher loop levels.

Contact Person

联系人

Song He
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