- #1
craigmcewan
- 6
- 0
Hi
I've been struggling to understand entanglement for some time now, and find that most explanations assume some basic knowledge that I don't have. Please could somebody help clear up a very basic query for me?
If two photons are entangled, and we have no knowledge of their state of polarisation:
If one photon is tested for horizontal polarisation, and passes, what is the probability that the other will pass a test for vertical polarisation?
I believe that I've read that the probability is 100%. Is this correct?
And if so, is it actually, experimentally 100% every time? One would expect experimental error to to produce a few failures, even if the theory says it's 100%!
I'd love to find a paper that describes this experiment clearly, in layman's terms. If anyone can direct me to such a paper, I would be very grateful!
Thanks in advance
Craig
I've been struggling to understand entanglement for some time now, and find that most explanations assume some basic knowledge that I don't have. Please could somebody help clear up a very basic query for me?
If two photons are entangled, and we have no knowledge of their state of polarisation:
If one photon is tested for horizontal polarisation, and passes, what is the probability that the other will pass a test for vertical polarisation?
I believe that I've read that the probability is 100%. Is this correct?
And if so, is it actually, experimentally 100% every time? One would expect experimental error to to produce a few failures, even if the theory says it's 100%!
I'd love to find a paper that describes this experiment clearly, in layman's terms. If anyone can direct me to such a paper, I would be very grateful!
Thanks in advance
Craig