noun
path integral
Technical term in physics, especially quantum mechanics and quantum field theory, referring to an integral over all possible paths or histories.
ファインマンの経路積分は量子力学の定式化の一つである。
Feynman's path integral is one formulation of quantum mechanics.
Compound of 経路 (path, route) and 積分 (integral). A calque of English 'path integral'.