About
I will discuss some new developments in the context of the Amplituhedron construction for planar N=4 SYM scattering amplitudes. I will define a negative Amplituhedron geometry which provides an all-loop order definition for a certain IR finite quantity, related to the ratio of null polygonal Wilson loops. Then I will show that the Amplituhedron picture suggests an interesting expansion of this quantity in terms of "loops of loops", unrelated to the usual small coupling expansion. In the leading order, I will provide an exact result to all orders in the coupling, and show the relation to the cusp anomalous dimension. Finally, I will discuss a certain interesting deformation of the geometric construction, and then conclude with future directions. .
0:00:00 Slide 1
0:01:21 Slide 2
0:04:53 Slide 3
0:06:24 Slide 4
0:17:18 Slide 5
0:19:29 Slide 6
0:21:57 Slide 7
0:23:51 Slide 8
0:26:11 Slide 9
0:28:13 Slide 10
0:30:06 Slide 11
The talk
Credits and licence
- Institution
- CERN
- Department
- Theory Colloquia
- Speaker
- Jaroslav Trnka
- Year
- 2023
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed