5 papers
Plabic promotions beyond cluster: quantum cluster structures and the dual canonical basis
Jian-Rong Li, Michael Oren Perlstein, Ran J. Tessler
Plabic tangles define geometric promotion maps between configurations and, after choosing a lift, between Grassmannians. The main conjecture in \cite{Tangles} is that when the tang…
Symmetric Amplituhedra I: Spinor Helicity
Ran J. Tessler
For every pair of integers and and every subgroup of , we construct the nonnegative symmetric Grassmannian, which is the subspace of the non…
The Lagrangian Amplituhedron
Syl Tom Krovi, Ran J. Tessler
The article constructs the Lagrangian analog of the amplituhedron, studies its geometric properties and BCFW decompositions.
Notes on the one-loop amplituhedron and its BCFW tiling
Ran J. Tessler
These notes are based on talks I gave in the seminar "Mathematical structures in scattering amplitudes in quantum field theories" I organized in Weizmann Institute on Fall 24'. The…
The BCFW Tiling of the ABJM Amplituhedron
Michael Oren-Perlstein, Ran Tessler
The orthogonal momentum amplituhedron O_k was introduced simultaneously in 2021 by Huang, Kojima, Wen, and Zhang, and by He, Kuo, and Zhang, in the study of scattering amplitudes o…