Recent content by i8uncertainty

Hello Sylvia, I came to the same conclusion - that the example doesn't seem to be showing entanglement at all, I think that webpage was meant more as a general introduction to spark the mind of a newcomer to the subject but didn't quite hit the quanta on the head regarding entanglement. However...

Ok, thanks for the links and the responses, I'm starting to see the weirdness in the example of the non-liner quantum correlation of readings, still going to take a bit to get my head round though!

Where do they show entanglement? If we take the situation to its bare bones without detectors and even discarding the photons that take the non-slits route, then if we count all the photons going through the circularly polarising plates(Quarter Wave Plates) we get no pattern. If we take away...

If that's the case then this experiment doesn't show entanglement - just an elaborate (but rather nifty) way to selectively filter photons indirectly, and the delayed choice experiment after it seems a bit pointless. So I'm inclined to think I've missed something here?

Hello all, I have been reading about quantum entanglement on this webpage. It builds up to the quantum eraser where two entangled photons are produced using a BBO crystal, that have opposite polarity, with one going through a double slit to a detector and the other going to another detector...