Positroids, Plabic Graphs, and Scattering Amplitudes in Mathematica
The many intricate connections between scattering amplitudes, on-shell diagrams, and the positroid stratification of the Grassmannian has recently been described in great detail. In order to facilitate the exploration of this rich correspondence, we have prepared a public Mathematica package called "positroids" which includes an array of useful tools including those for the construction of canonical coordinates for positroid configurations, the drawing of representative on-shell (plabic) graphs, and the evaluation of on-shell differential forms. This note documents the functions made available by the positroids package; the package's source code together with a Mathematica notebook containing many detailed examples of its functionality are included with this note's submission files on the arXiv.
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Work Title | Positroids, Plabic Graphs, and Scattering Amplitudes in Mathematica |
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License | In Copyright (Rights Reserved) |
Work Type | Article |
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Publication Date | December 31, 2012 |
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Deposited | November 19, 2024 |
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