Why do we use probability amplitudes in quantum mechanics?

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bon
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Homework Statement



What physical phenomenon requires us to work with probability amplitudes rather than just with probabilities, as in other fields of endeavour?


Homework Equations





The Attempt at a Solution



Not sure. The wording of the q throws me... phenomenon i.e. singular..?

Is there one phenomenon in particular?
 

Discussion

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hi bon! :smile:

i think it means, in what circumstances would you have to add the amplitudes? :wink:
 
tiny-tim said:
hi bon! :smile:

i think it means, in what circumstances would you have to add the amplitudes? :wink:

Thanks okay i get this now.

Got another question though...

How do you do part (c) on this question? I'm a bit confused...
 

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uhh? that's a completely new question :redface:

please start a new thread