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Institute of Theoretical Physics |
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Chinese Academy of Sciences |
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Key Laboratory of Theoretical Physics |
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Seminar |
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Title
题目 |
Projective Geometry of Scattering Amplitudes |
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Speaker
报告人 |
Dr.Ellis Ye Yuan |
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Affiliation
所在单位 |
IAS-Princeton |
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Date
日期 |
2016年12月14日（星期三）下午 15:30 PM - 17:00 |
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Venue
地点 |
ITP new building Room 6420/理论物理所新楼6420报告厅 |
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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. |
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Contact Person
联系人 |
Song He |
