English Dictionary

spin foam

noun

(physics) A topological structure made out of two-dimensional faces that represents one of the configurations that must be summed to obtain a Feynman's path integral description of quantum gravity.

Spin foam is a concept in quantum gravity.

意味（1）

(physics) A topological structure made out of two-dimensional faces that represents one of the configurations that must be summed to obtain a Feynman's path integral description of quantum gravity.