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Theory Colloquia
Non-perturbative Amplituhedron Geometries
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Europe/Zurich
4/3-006 - TH Conference Room (CERN)
Description
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.
Videoconference
TH colloquia
- Zoom Meeting ID
- 67346292748
- Host
- Elena Gianolio
- Alternative hosts
- AVC support account, Zoom Recording Operations 2, Irene Valenzuela Agui, Thomas Nik Bazl Fard, Urs Wiedemann, Pier Francesco Monni, Pascal Pignereau, Clement Montcharmont, Benoit Loyer
- Passcode
- 80279029
- Useful links
- Join via phone
- Zoom URL
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