Naked Science Forum
On the Lighter Side => New Theories => Topic started by: nilak on 14/08/2017 10:28:03
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When analysing experiments from quantum entanglement, it appears that a measurement on a particle at one place can instantly influence the results on the entangled particle. Bell's theorem demonstarates that it cannot be hidden variable carried by the particles from the moment of the pair production. Therefore we could say there is an instant comunication between the particles. Special relativity would not allow this to happen. Two spacelike separated events cannot be cause and effect and there is no way to tell which event happened first. Indeed, it doesn't matter what particle you measure first, the outcome is the same. The no communication theorem shows we can't send information via entanglement, however this doesn't mean information doesn't travel FTL. It seems like there is no way to explain what happens, at least for me, although most physicists will say that we should take this as is. We could say we can consider the two particles a single system. When you do the measurement on one particle the system collapses and the spin of the particles becomes known. However, this is still not a clear explanation because the particles are in different places.
A similar problem happens in the delayed choice quantum erase experiment but this time the "communication" is not instantaneous, but it apparently can even go back in time. We delay the moment of knowing the which way and the particle can go one slit or another, like it usually does, but when we look at the results it seems that the particle erases its past and writes a new one based on what we did.
There is also a delayed choice quantum entanglement experiment that also invokes retrocausality.
To explain these, instead of instant action at a distance or retrocausality, my hypothesis is the particles act as if they can anticipate the future events. In fact the whole universe would know its future. This way it could also mean it is deterministic and the future and the past are as if they already exist. These last two statements are compatible. This hypothesis leads to no violation of relativity I suppose. From the fact that spacelike events don't have a genuine order of occurrence one can also draw the same concusion that the fututure and past already exist. My hypothesis only says the universe future is already known but it is not in contradiction with the possibility of the past and future already existing and that cannot be changed.
If we go back to the quantum entanglement, the universe evolves in such a way the entangled particles to remain in opposite states even though they don't communicate with each other. An analogy can be our free will. It appears as if we can decide about our future actions but our decisions are the result of the fundamental interactions of quantum fields.
In QM if you measure the spin of a particle it seem that the outcome is genuinely random even though we know with certainty the probability of each spin it can take. However, as a consequence of my hypothesis here, the states only apear as if they are random. Or at least, they can only occur if there is a consistency between the past and the future, and therefore many of the possible states cannot happen. For example an entangled particle cannot be measured and found spin |up> if there is going to be a a measurement that will also show a spin |up> for its pair on the same axis. However, I need a deeper understanding of QM because, I'm not sure if this hypothesis holds against the idea that emerges from quantum mechanics that the universe evolution is fundamentally unpredictable.