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When:

January 19, 2021 @ 4:00 pm – 5:00 pm

2021-01-19T16:00:00+02:00

2021-01-19T17:00:00+02:00

Title: Frontiers in Positive Geometry.

Abstract: In this talk I will describe work in progress connecting scattering amplitudes to amplituhedra and positive geometries in kinematic space. For N=4 SYM in the planar limit, I will show how the geometry of the amplituhedron naturally provides a new approach to non-perturbative physics. I will also describe conjectural all-loop order, non-planar, non-supersymmetric amplituhedra for the tr(phi^3) theory–which are new (generally infinite) polytopes attached to any Riemann surface–and show how the connection to positive geometry forces the existence of “gravity” in this setting.