Recent content by jwalker

I never considered the pump photons behind BBO. Like I said before, I noticed that there are claims that the experiment equals to double-slit. If it does, the wave function won't collapse on BBO emission. To me it looked questionable, so I proposed an option of two photons hitting both A and B...

That's what I said, no? :smile: So, can this still be seen as an eraser since there is a more logical explanation?

By the way, I'm not sure if passing the double slit and hitting the BBO with signal-idler generation collapses photon's wave function. If it doesn't, things are even simpler because simultaneity doesn't apply and interference on BS is obvious.

Are you referring to "Optical imaging by means of two-photon quantum entanglement"? This is so good that you mentioned it, as it makes it easier for me to explain my idea--see below. If they moved them, which I believe they did not in the original experiment, they wouldn't get the pattern, but...

To me there is an interference when photons (either single or double) pass through a double slit and interact with each other or themselves. On the contrary, in the experiment, the entangled photons never interact, the only connection between them is the coincidence circuit. Can you still call...

I could try to find the links again, but they're really irrelevant here. So, is it correct that it is not a real interference but something that just produces an interference-like pattern? I know, but the key word is "mean", and the rate is high. Now that I'm thinking about it, since the...

It was in the articles and presentations I looked through. So, it's both yes and no at the same time, got it :smile:. Joking aside, what are the two interfering photons you are referring to? My bad, that was my quick estimate, and I just considered a 1 W laser, which is probably too much, and...

Well, not in original paper, but not anywhere, too. There are many comments emphasizing simultaneous emissions from A and B are not possible as only one photon at a time passes through the double slit. Thus my original point, I believe simultaneous emissions do occur. Do you agree?

I don't think you're referring to the experiment.

Let's not go that far for now. What do you think of photons generated at A and B at the same time?

Not sure what you mean. Do you support or oppose quantum eraser explanation? :smile:

It is claimed that DCQE is equivalent to a single-photon double-slit setup. However, In this experiment, the 351.1nm Argon ion pump laser beam is divided by a double-slit, which means the actual photon rate is 1013 times higher than in a single-photon setup. Consequently, it makes it possible...