What makes the interference pattern of electrons in the double-slit experiment a non-classical feature?

The probability pattern of every electron being a particle and that of being a wave are different.

For the particle pattern, the left-slit part and the right-slit part of the probability wave do not overlap. The quantum superposition does not cause a (interference) pattern.

This is why the interference pattern is a non-classical feature of the electron double-slit experiment.

— Me@2016-10-06 09:53:07 AM

2016.10.07 Friday (c) All rights reserved by ACHK