Ward Identities

Why is it interesting?

Layman

Explanations in this section should contain no formulas, but instead colloquial things like you would hear them during a coffee break or at a cocktail party.

Student

"Symmetries of the classical theory become Ward identities for correlators in quantum field theory" Source

Researcher

The motto in this section is: the higher the level of abstraction, the better.

Examples

Example1
Example2:

FAQ

History