12/03/2015 - 16:00

12/03/2015 - 17:30

Speaker:

Hugh Thomas (UQAM / CRM)

Location:

Concordia University, Math Help Center, Room 912.00 / Library Building, 1400 de Maisonneuve Blvd. West, Montreal

Abstract:

Arkani-Hamed and Trnka introduced the amplituhedron as a device for calculating scattering amplitudes of N=4 SYM. Amplituhedra have several discrete parameters: n, the number of particles, k, which encodes the helicities, and L, the loop level. I will explain the definition of the amplituhedron with particular reference to the case L>0. I will also explain progress towards a more concrete understanding of the higher loop level amplituhedra, in joint work with Arkani-Hamed and Trnka. This will be something of a sequel to my talk on tree-level amplituhedra on Tuesday, December 1, in the CRM mathematical physics seminar, but I will try to keep both as self-contained as possible.