Hello, was wondering a couple of details on the wave nature of electrons and the state of the art in this field. In particular: Is it practical and possible (easily) to create a cm sized electron interference pattern (fringes are in the cm size magnitude). I have so far seen Low Energy Electron Diffraction (LEED) which seems to be able to create wave lengths that are permissive to this kind of thing... Is it possible to create a standing wave of electrons similar to the way a microwave oven creates standing microwaves (with hot and cool spots). What does it mean from a quantum perspective for an electron to be constructively/destructively interfered with? Does its charge get "amplified" the same way a light wave becomes brighter? I'm asking all this because I'm wondering if there's a way to exploit the wave nature of electrons to create very deep electrostatic potential wells. Appreciate the info.