- #1
tim1608
- 63
- 0
Hi
I have just watched a fascinating documentary on YouTube called "Atomic Physics and Reality" which describes an experiment conducted by Alain Aspect regarding two entangled photons traveling in opposite directions towards polarised filters oriented at different angles.
I would be very grateful if someone could help me with something regarding Alain Aspect's experiment. I don't understand how the experiment can tell that the orientation of the polarisation of the photons is only decided upon passing through the filters and not upon emission from the source. Would it not be the case that either way would produce the same results because the orientation of the two entangled photons would be the same as each other in both situations? What am I missing here?
To be honest, even though I understand a little bit about polarisation works, I don't think I understand enough to know how it effects Alain Aspect's experiment. I would therefore be very grateful if someone could give me a ground-up, beginner's explanation of how Alain Aspect's experiment works and how the timing of orientation decision effects the results.
Thank you very much.
Kind regards
Tim
I have just watched a fascinating documentary on YouTube called "Atomic Physics and Reality" which describes an experiment conducted by Alain Aspect regarding two entangled photons traveling in opposite directions towards polarised filters oriented at different angles.
I would be very grateful if someone could help me with something regarding Alain Aspect's experiment. I don't understand how the experiment can tell that the orientation of the polarisation of the photons is only decided upon passing through the filters and not upon emission from the source. Would it not be the case that either way would produce the same results because the orientation of the two entangled photons would be the same as each other in both situations? What am I missing here?
To be honest, even though I understand a little bit about polarisation works, I don't think I understand enough to know how it effects Alain Aspect's experiment. I would therefore be very grateful if someone could give me a ground-up, beginner's explanation of how Alain Aspect's experiment works and how the timing of orientation decision effects the results.
Thank you very much.
Kind regards
Tim