Double slits experiment revisited. Electron gun Real pattern The pattern of electron interference is just like that of the light,so we can use a property like E in optics whose square stands for the probability of electron appearing at certain position.Double slits experiment revisited. Electron gun 1 2 I1+ I2 Real pattern The pattern of electron interference is just like that of the light, so we can use a property like E in optics whose square stands for the probability of electron appearing at certain position