Place: TAU Schreiber Mathematical Institute, room 309
Time: Tuesday, 12:10
Organizer: Evgeny Feigin
Place: TAU Schreiber Mathematical Institute, room 309
Time: Tuesday, 12:10
Organizer: Evgeny Feigin
Upcoming talks:
23.06. Speaker: Ran Tessler (WIS)
Title: Amplituhedra and their tilings: a geometric perspective on QFTs
Abstract: The amplituhedron is a semi algebraic space introduced in 2013 by Arkani-Hamed and Trnka in their endeavor to understand planar N=4 Super Yang Mills amplitudes, and the construction was later extended to a few other QFTs by other authors. A surprising property of this space which plays a salient role in its relation to physics is that it can be tiled suing simpler pieces which are defined via a recursive process. In my talk I will describe the amplituhedron, the non-negative Grassmannian on which it is built, and its tilings. Based on joint works with Chaim Even Zohar, Tsviqa Lakrec, Michael Oren Perlstein, Matteo Parisi, Melissa Sherman Bennett and Lauren Williams.
30.06. Speaker: Ran Tessler (WIS)
Abstract: A surprising property of planar N=4 SYM amplitudes these amplitudes is that they satisfy mysterious connections with cluster algebras. These connections are both interesting theoretically, and play a crucial role in calculating the amplitudes. In my talk I will describe the amplituhedron, the non-negative Grassmannian on which it is built. I will then explain one of the central relations with clusters, its proof, and a recent conjectural generalization in the language of operads. Based on joint works with Chaim Even Zohar, Tsviqa Lakrec, Matteo Parisi, Melissa Sherman Bennett and Lauren Williams.