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Combinatorics of the amplituhedron

By Lauren Williams

Appears in collection : Combinatorics and Arithmetic for Physics : Special Days

The amplituhedron is the image of the positive Grassmannian under a map in- duced by a totally positive matrix. It was introduced by Arkani-Hamed and Trnka to compute scattering amplitudes in N=4 super Yang Mills. I’ll give a gentle introduction to the amplituhedron, surveying its connections to cluster algebras, matroids, and combinatorics (Eulerian numbers, Narayana numbers, etc)

Information about the video

  • Date of recording 11/29/22
  • Date of publication 11/30/22
  • Institution IHES
  • Language English
  • Audience Researchers
  • Format MP4


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