"Geometric picture for scattering amplitudes," by Jaroslav Trnka (California Institute of Technology)

Monday, March 9, 2015 - 2:30pm to 3:30pm
TEP Seminars

TEP Seminar

Physics & Astronomy Building (PAB) 4-330
Monday, March 9, 2015

Guest Speaker: Jaroslav Trnka (California Institute of Technology)

Talk Title: "Geometric picture for scattering amplitudes"


There has been a growing evidence that the standard formulation of Quantum Field Theory using path integrals and Feynman diagrams fails to explain unexpected simplicity and hidden symmetries of the scattering amplitudes. I show that in a certain gauge theory there exists a radically different picture for amplitudes as volumes of the "Amplituhedron" which is a higher-dimensional generalization of convex polygons. I also comment on an extension of this picture to other cases and some similarities in effective field theories.

PAB 4-330