Talks

Location: Home>Activities>Talks

(Lunch Seminar)Spacetime and Quantum Mechanics from Positive Geometries: A Case Study

12/26 2017
  • Title (Lunch Seminar)Spacetime and Quantum Mechanics from Positive Geometries: A Case Study
  • Speaker
  • Date
  • Venue
  • Abstract

    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