Word.ws English Dictionary

amplituhedron

amplituhedron noun: 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.

Noun

amplituhedron (plural amplituhedra or amplituhedrons)

  1. (quantum field theories) 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
    • 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.2015, Yvon Gauthier, Towards an Arithmetical Logic, page 173

Examples of amplituhedron in a sentence

  • The amplituhedron is not built out of spacetime and probabilities; these properties merely arise as consequences of the jewel's geometry.2017, Richard L. Amoroso, Universal Quantum Computing, page 486:
  • But unlike in Feynman diagrams, the amplituhedron does not start with space-time that has these properties.2017 July 29, Anil Ananthaswamy, “The new shape of reality”, in New Scientist, number 3136, page 31:

Forms of amplituhedron

pluralamplituhedra
pluralamplituhedrons

Origin of amplituhedron

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.

Questions about amplituhedron

What does amplituhedron mean?
Amplituhedron means 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.
How do you use amplituhedron in a sentence?
The amplituhedron is not built out of spacetime and probabilities; these properties merely arise as consequences of the jewel's geometry.
What part of speech is amplituhedron?
Amplituhedron is a noun.
What is the plural of amplituhedron?
The plural of amplituhedron is amplituhedra.

Words near amplituhedron in the dictionary

  1. amplitudeologists
  2. amplitudeology
  3. amplitudes
  4. amplitudinal
  5. amplituhedra
  6. amplituhedron
  7. amplituhedrons
  8. amplodipine
  9. amply
  10. ampo
  11. Ampoi

Source and license

Adapted from Wiktionary: amplituhedron (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “amplituhedron.” Word.ws, https://word.ws/amplituhedron. Based on Wiktionary, CC BY-SA 4.0.