3 ms·

> do they join to create the old photon? Fundamental particles don't have unique characteristics so they don't have identity. It doesn't make much sense to ask

• daxfohl 7y ago
  I think I am trying to save locality by giving this split, entangled particle an identity. To the split particle, it's the rest of the world that's split and entangled. So when it collapses, there is no faster than light travel from its perspective. Basically extending the concept of locality to allow for being in multiple places at the same time, relative to your perception of the world. Basically, trying out the thought experiment where, say the universe is two photons, and one splits, can we model it so that each photon thinks it is the other one who split? The same way general relativity did for rotating bodies. But, entanglement isn't always just a single particle that splits. An electron can be entangled with a proton and such too. So probably this approach is silly. And physicists seem to be fine with ftl correlation so long as no communication takes place, so probably there is no problem to begin with.