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Indeed you can, if you realize that the place occupied by the "point particle" is described by its wavefunction.
by Koshkin 7y ago
Indeed you can, if you realize that the place occupied by the "point particle" is described by its wavefunction.
- roywiggins 7y agoI know! But when you poke it, it still acts like a particle and the wavefunction localizes again, right? It doesn't exactly "puff up" like a billiard ball. Electrons don't really get bigger when they are put into states where their position is less localized. But the expansion of space does "stretch" light- or at least, the wavelength gets longer, so it's not not happening.