Institute of Mathematics


Modul:   MAT074  Talks in mathematical physics

The Amplituhedron BCFW Triangulation

Talk by Dr. Tsviqa Lakrec

Date: 06.11.23  Time: 13.15 - 14.15  Room: Y27H25

The (tree) amplituhedron was introduced in 2013 by Arkani-Hamed and Trnka in their study of N=4 SYM scattering amplitudes. A central conjecture in the field was to prove that the m=4 amplituhedron is triangulated by the images of certain positroid cells, called the BCFW cells. In this talk I will describe a resolution of this conjecture in a joint work with Chaim Even-Zohar and Ran Tessler. I will also discuss more recent generalization of this theorem to other triangulations and how to associate the images of positroid cells with a cluster algebra structure, a joint work with Even-Zohar, Tessler, Sherman-Bennett, Parisi and Williams.