Well it went to “it’s a particle” because all the other particles became “excitations of quantum fields” as well...
(And there are still significant differences in the phenomenological treatments because the boundary conditions play a very special role in describing and quantizing the field modes in actual calculations.)
Well it went to “it’s a particle” because all the other particles became “excitations of quantum fields” as well...
(And there are still significant differences in the phenomenological treatments because the boundary conditions play a very special role in describing and quantizing the field modes in actual calculations.)