50 citations · 152 across the 7 of their papers we have counts for
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All-loop singularities of scattering amplitudes in massless planar theories
Igor Prlina, Marcus Spradlin, Stefan Stanojevic
In massless quantum field theories the Landau equations are invariant under graph operations familiar from the theory of electrical circuits. Using a theorem on the - reducib…
Boundaries of Amplituhedra and NMHV Symbol Alphabets at Two Loops
Igor Prlina, Marcus Spradlin, James Stankowicz +1
In this sequel to arXiv:1711.11507 we classify the boundaries of amplituhedra relevant for determining the branch points of general two-loop amplitudes in planar su…
All-Helicity Symbol Alphabets from Unwound Amplituhedra
Igor Prlina, Marcus Spradlin, James Stankowicz +2
We review an algorithm for determining the branch points of general amplitudes in planar super-Yang-Mills theory from amplituhedra. We demonstrate how to use the re…
Landau Singularities from the Amplituhedron
Tristan Dennen, Igor Prlina, Marcus Spradlin +2
We propose a simple geometric algorithm for determining the complete set of branch points of amplitudes in planar N=4 super-Yang-Mills theory directly from the amplituhedron, witho…