Amplituhedron
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A mathematical structure which encodes the integrand of an amplitude in planar N=4 super Yang-Mills theory, used in calculations of scattering amplitudes of particle interactions.
"Meronym: twistor"
Example
More examples"In another parallel universe the amplituhedron, a recent invention in quantum field theory, is a geometric form endowed with a positive Grassmannian, that is an internal arithmetical structure for the calculation of amplitudes in terms of k-planes filling up an n-dimensional space."
Etymology
From amplitude + -hedron. Coined by Nima Arkani-Hamed and Jaroslav Trnka in 2013 and published in 2014 in an article in the Journal of High Energy Physics.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.