Some remarks on the quantum mechanics of the electron

For didactic as well as historical reasons it does not make much sense for about thirty years to speak of the diffraction of electron waves by microscopic slits as an “imaginary experiment”.

The coherence length of electron waves has been measured by the phase shift of a coherent partial electron wave propagating through a metallic micro-tube to which an electric potential is applied.

The statement by H. Hora that the phase shift of electron waves due to the magnetic vector potential depends on electron velocity is not supported by experiments.

There is no principal upper limit for the electron-optical path length difference due to an enclosed magnetic flux.