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8 votes
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What Does Feynman Mean When He Says Amplitude and Probabilities?

I think the confusion starts from an interpretation of quantum mechanics I have seen many times applied to atomic orbitals or Young's double-slit experiment (YDSE). In the former case the electron has ...
JEB's user avatar
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2 votes

What Does Feynman Mean When He Says Amplitude and Probabilities?

I believe your interpretation of Feynman is fully correct here. He is drawing a line between which objects in the theory need to have wavefunctions (amplitudes) and which can be described by ordinary ...
Dast's user avatar
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1 vote

Is it possible for a double slit experiment to create an interference pattern at 90 degrees?

Yes, it is possible. In the Fraunhofer approximation you have $$ I(\theta) \propto \cos^2 \left [{\frac {\pi d \sin \theta}{\lambda}}\right]~\mathrm{sinc}^2 \left [ \frac {\pi b \sin \theta}{\lambda} ...
my2cts's user avatar
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