Skip to Content

Sponsors

No results

Keywords

No results

Types

No results

Search Results

Events

No results
Search events using: keywords, sponsors, locations or event type
When / Where
All occurrences of this event have passed.
This listing is displayed for historical purposes.

Presented By: Combinatorics Seminar - Department of Mathematics

Combinatorics Seminar - From Scattering Amplitudes to Catalan combinatorics

Nick Early

In this talk, I will give a gentle overview of recent developments at the intersection of combinatorics, real, complex and tropical geometry and theoretical particle physics. The beating heart of that intersection is the Cachazo-He-Yuan (CHY) integral formulation of Quantum Field Theory, and its generalization by Cachazo-Early-Guevara-Mizera (CEGM) to moduli spaces of points in projective spaces of any dimension. The values of these integrals are rational functions of certain kinematic invariants, closely related to a richly structured object, the tropical Grassmannian; when these invariants are taken to be non-generic, beautiful combinatorics emerges. We explore that combinatorics. We also describe novel connections to oriented matroids and positive geometry, as introduced by Arkani-Hamed, Bai and Lam.

Explore Similar Events

  •  Loading Similar Events...

Back to Main Content