- #1
Ali Lavasani
- 54
- 1
In http://www.feynmanlectures.caltech.edu/III_05.html#Ch5-S1, Feynman mentions that the 2-stage Stern-Gerlach experiment, which proves the electron spin states to be in a superposition, has never been actually done! I have also not seen any paper reporting such an experiment. My question is, has this experiment actually been done, and if so, have its results confirmed orthodox QM?