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## Main Question or Discussion Point

https://en.m.wikipedia.org/wiki/Schrödinger_equation

"Two-slit diffraction is a famous example of the strange behaviors that waves regularly display, that are not intuitively associated with particles. The overlapping waves from the two slits cancel each other out in some locations, and reinforce each other in other locations, causing a complex pattern to emerge. Intuitively, one would not expect this pattern from firing a single particle at the slits, because the particle should pass through one slit or the other, not a complex overlap of both."

since the Schrödinger equation is a wave equation, a single particle fired through a double-slit

Why does it need to be repeated many times for the pattern to emerge when the evolution is continious?

It does not state why in the article.

Thanks in advance.

"Two-slit diffraction is a famous example of the strange behaviors that waves regularly display, that are not intuitively associated with particles. The overlapping waves from the two slits cancel each other out in some locations, and reinforce each other in other locations, causing a complex pattern to emerge. Intuitively, one would not expect this pattern from firing a single particle at the slits, because the particle should pass through one slit or the other, not a complex overlap of both."

since the Schrödinger equation is a wave equation, a single particle fired through a double-slit

*does*show this same pattern (figure on right). The experiment must be repeated many times for the complex pattern to emerge."Why does it need to be repeated many times for the pattern to emerge when the evolution is continious?

It does not state why in the article.

Thanks in advance.

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