Recent content by Sambuco

I totally agree (see my post #53). Yes I know. I still think it's relevant. In any case, if you think it's better to discuss it in a separate thread, that's fine. Well, well, maybe we need someone more trained in QED than me to answer this. It will take me more than a few minutes to look up...

I'm on your side on this! In effect, what I am trying to argue is that the entanglement observed in DCES is as real as any other, but adding that this is nothing more than a representation of the information we have about the correlation between certain events. I'll try to explain myself...

No, I'm not assuming that, but I clearly didn't manage to explain myself well in the previous messages. What I tried to say is that, once only those runs in which there are two photons are chosen, according to the results obtained from the measurements made on those two photons, a fraction of...

I think I understand it better now. Thank you for your patience! :smile: Let me explain further and tell me if I'm wrong. If many runs are performed, I can carefully post-select only those where the final product is such that, considering the reverse process, the electron-positron pairs will...

It's the same in the case I described. The entire set of electron-positron pairs shows no correlation whatsoever in their spins. The correlation only appears when a subset of runs is post-selected (the subset where exactly two photons were produced). True, the two cases are not identical...

This is a particular feature of Bohmian mechanics that arises because it presupposes a preferred direction for time evolution. In contrast, in ##\psi##-epistemic interpretations, the same "explanation" applies regardless of the order in which the measurements are made. Personally, I see this as...

Sure. In fact, this same reasoning can be applied to DCES experiments, which indicate that once photons A and D are measured, they cease to be entangled, making it impossible to assign them a Bell state. However, what this Bell state does is a postdiction of the results of the measurements of...

What I have done is take a set of electron-positron pairs without any type of initial correlation between the spins. For each pair, the spin of each particle is measured and, after that, they are collided. In some of the pairs, the particles will pass through each other, while in other pairs...

@PeterDonis in the closed thread you ask me about a reference for the claim that the quantum potential is not considered fundamental in modern presentations of Bohmian mechanics. I share with you this paper by Dürr-Goldstein-Zanghì. In section 2, they analyze the question we were talking about...

I think these types of delayed-choice experiments are somewhat "tricky". For example, suppose we have a bunch of electron-positron pairs and we measure the spin of each of them in arbitrary directions. After that, one by one, we make them collide. Some of them will annihilate and give rise to a...

Yes, I completely agree with what you're saying. In fact, I put that BM is a ##\psi##-ontic interpretation because that's the usual way and to avoid confusion, but personally, I consider it a ##\psi##-nomological interpretation. I would like to clarify that the mention of the "quantum...

All those entanglement-swapping experiments can be satisfactorily described by Bohmian mechanics, but it's important to note that its interpretation is completely different from the one given in the papers you cited. For an information-based interpretation like Zeillinger's, where the wave...

I was referring only to Barandes' current formulation in which, for the case of non-relativistic QM, the configurations are effectively given by the positions of the particles. However, I agree that all of that should only be an intermediate step if the formulation is intended to be anything...

Okay, now I understand your point of view better. Thanks for the reply! Lucas.

I think they are nothing more than overly idealized thought experiments that seek to understand the implications of assuming the universality of quantum mechanics. Of course, in practice, it's virtually impossible to achieve something like that, but the analysis remains valid. In other words, I...