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(Lunch Seminar)Spacetime and Quantum Mechanics from Positive Geometries: A Case Study
2017-12-26  【】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

Lunch Seminar

Title

题目

Spacetime and Quantum Mechanics from Positive Geometries: A Case Study

Speaker

报告人

何颂

Affiliation

所在单位

ITP

Date

日期

2017年12月26日(周 二)中午12:00

Venue

地点

Conference Hall 322, ITP/理论物理所322报告厅

Abstract

摘要

Space-time and Quantum Mechanics are the pillars of our understanding of fundamental physics, but there is evidence that these concepts may be approximate and replaced by something deeper. The study of scattering amplitudes in QFT gives us a theoretical playground where such questions can be sharply posed. I will describe a new formulation for the S-matrix that follows from mathematical structures in “positive geometry”, without local interactions in spacetime. Ranging from the “Amplituhedron” for N=4 SYM to “Associahedron-like” picture for a wide variety of massless theories, we will see in these examples how quantum mechanics and spacetime emerge hand-in-hand from more primitive, geometric origins.

Contact Person

所内联系人

杨刚
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