Are there any primary experiments used to try to prove the Quantum Electrodynamics theory? Were they all successful, and how were they performed? Also, I was wondering where Feynman's equations are used primarily now, everyday.
closed as too broad by Emilio Pisanty, Qmechanic♦ Jul 15 '18 at 13:10
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Measuring the fine structure constant was a great validation of quantum electrodynamics.
The experiment is still being refined"
Refining the fine-structure constant
The fine-structure constant, α, is a dimensionless constant that characterizes the strength of the electromagnetic interaction between charged elementary particles. Related by four fundamental constants, a precise determination of α allows for a test of the Standard Model of particle physics. Parker et al. used matter-wave interferometry with a cloud of cesium atoms to make the most accurate measurement of α to date. Determining the value of α to an accuracy of better than 1 part per billion provides an independent method for testing the accuracy of quantum electrodynamics and the Standard Model. It may also enable searches of the so-called “dark sector” for explanations of dark matter.