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IL comments on Can You Prove Two Particles Are Identical? - Less Wrong
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But the experiment does'nt prove that the two photons are really identical, it just proves that the photons are identical as far as the configurations are concerned. The photons could still have tiny tags with a number on them, but for some reason the configurations don't care about tags.
Yes, technically, you could maybe do that. At least as long as you don't have two photons occupying the same state, in which case I am unsure.
However, your generat quantum state does not have a precis number of photons. So before you can start flag anything, you would have to express the quantum state as a sum of states that has an exact number of photons. Then you could, separately for each term in that sum, label each photon. And then, a moment later, you would have to do that all over again. Because you cannot track over time which photon is which.
So why would you go in to all that trouble to invent an epiphonomena?