Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.


7
Posts:
34
Registered:
1/29/11


Entanglement causes causality?
Posted:
Sep 7, 2013 4:22 PM


I'm working on a digital version of a quantum computer but notice a strange result.
A quantum computers we build today is similar to analogue computer of yesterday and so a digital quantum computer is a digital version of an analogue quantum computer but much more precise and versatile.
But there is a problem when implementing its logic that I notice that someone needs to sort out.
Digital qbits can be produced that are entangled much like photons that can be produced that are entangled.
"With entangled photons, when one photon is known to be polarized in the up position the other must be in the down position."
That sounds so simple but it hides an extremely deep problem in causality.
Once a photon orientation of one photon of an entangled pair is known, in order to guarantee that the other photon takes the opposite value, all quantum transitions in the entire universe must follow in a precise order to ensure that the second photon state is the oppposite value. If a single quantum state transition took place that was out of place, anywhere in the universe, you could end up with that entangled photon being detected as the wrong value due to the butterfly effect.
So engtanglement guarantees causality.
But then causality can only be realized if all quantum state transitions are realized in their precise order all at once for each step of time defined by whatever is the smallest time scale for the smallest state transition.
So when Einstein said god does not play dice, he was indeed correct. The entire universe is a mechanism that ticks all at once to prevent causality violations because of quantum entanglements. What we see as fuzzy objects are precisely to do with the tools that are being used. Just like out of focus lenses. To get sharper pictures you would need different glasses.
What promted all this is that digital quantum computer must be manufactured with all its state transitions taking place all at once to prevent causality errors in entangled bits. There is no escape.
This implies the real world must also be implemented the same way unless someone can find a get out clause as to why entanglements do not cause causality.



