QM: measurement vs interaction

  • Thread starter oddthingy
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  • #1
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I'm just wondering...

Regarding the single & double slit experiments...

Why does every interpretation say that the photographic screen is 'measuring' the position of the particle travelling towards it?

Why not say that the photographic screen interacts with an electron that is spread out over a larger amount of space, to make it coallesce into a smaller amount of space?
 

Answers and Replies

  • #2
Bill_K
Science Advisor
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Because it's only a single screen pixel that interacts with the electron and registers its impact, not the entire screen. The interaction is local.
 

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