Meaning of amplituhedron | Babel Free

Definitions

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.

Examples

“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.”

“The amplituhedron is not built out of spacetime and probabilities; these properties merely arise⟳ as consequences of the jewel's geometry.”

“Scattering amplitudes that obey⟳ the laws of locality and unitarity do emerge⟳ from amplituhedra. But unlike in Feynman diagrams, the amplituhedron does not start⟳ with space-time that has these properties.”

CEFR level