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For questions related to observers in relativity or quantum mechanics.

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Hidden observers in Double Slit experiments - Do they matter?

Actually it is not necessary to disturb the electron with photons or anything else. A measurement is required, but a measurement is just an observation. Consider the case where you are watching one o …
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2 votes

Numerical simulation of the double-slit experiment including watching the electrons

The effect Feynman describes is not calculated using the Schrödinger equation. Instead, it is a result of "wave function collapse" which is a result of the measurement of the electron's position. The …
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