Date:
Mon, 14/03/202211:00-13:00
Location:
Sprinzak 202
HUJI Combinatorics Seminar
When: Monday March 14th, 2022, at 11AM (Israel time)
Where: Sprinzak 202
Link for live session:
https://huji.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=3d2a3aff-6006-4f7e-88a0-ae500066f07e
Speaker: Chaim Even Zohar (Technion)
Title: The BCFW Triangulation of the Amplituhedron
Abstract:
The amplituhedron A(n,k,m) is a geometric object, discovered by Arkani-Hamed and Trnka (2013) in the study of scattering amplitudes in quantum field theories. They conjectured that A(n,k,4) admits a decomposition based on a certain combinatorial structure. The components are images of BCFW positroid cells of the Grassmannian Gr(k,n), which arise from the Britto–Cachazo–Feng–Witten recurrence (2005). In a recent paper with Tsviqa Lakrec and Ran Tessler, we prove this conjecture. In the talk, I will review the amplituhedron, its BCFW triangulation, and the main ideas of the proof.
Joint work with Tsviqa Lakrec and Ran Tessler
Speaker: Chaim Even Zohar (Technion)
Title: The BCFW Triangulation of the Amplituhedron
Abstract:
The amplituhedron A(n,k,m) is a geometric object, discovered by Arkani-Hamed and Trnka (2013) in the study of scattering amplitudes in quantum field theories. They conjectured that A(n,k,4) admits a decomposition based on a certain combinatorial structure. The components are images of BCFW positroid cells of the Grassmannian Gr(k,n), which arise from the Britto–Cachazo–Feng–Witten recurrence (2005). In a recent paper with Tsviqa Lakrec and Ran Tessler, we prove this conjecture. In the talk, I will review the amplituhedron, its BCFW triangulation, and the main ideas of the proof.
Joint work with Tsviqa Lakrec and Ran Tessler