noun
Feynman diagram
A pictorial representation used in quantum field theory to describe particle interactions.
ファインマン図を使って粒子の相互作用を計算する。
We calculate particle interactions using Feynman diagrams.
Named after the American physicist Richard Feynman. The Japanese term is a direct borrowing of the English 'Feynman diagram' with the kanji 図 (diagram) appended.