[Q] Quantum Entanglement

[gafa]

We never experienced any thing going faster than a bean of light and it would be contradictory to relativity and so on... We have never experienced extra dimensions either but we use mathematics to imagine it. Quantum Entanglement claims that sub particles have this mysterious long range connection right... So, how do we know that, there is nothing traveling faster than light between those particles? And fast enough to make us believe, in our own microscopic world, that they are connected. Or, if there is extra dimensions, could "this something" traveling between those particles, just finds its short cut through those extra dimensions, to give us the illusion that they are connected? I'm just a ordinary man trying to understand physics and its difference from philosophy.

[Karnuvap]

Your question is the deepest one in Physics that I know and I have thought about it a lot myself.

 

What you have to do to resolve this question is realise that the speed of a bean (I like to think of light as a series of little light beans too) of light represents the speed limit for INFORMATION to travel.

 

So in the famous Bell's inequality experiment (look it up on wikipedia if you need to) you will realise that although it seems to show that something is travelling between the two points - you still cannot use it to transmit information faster than the speed of light - and thus Einstein's speed limit is preserved.

 

Hope this helps.

 

The Vap.

[A23]

yep, a tough problem.

 

Could we say that sthg is transmitted from a central source to the two points showing an apparent correlation, but nothing travels from these 2 points (central command if you want).

 

I understood that Bell proved that this was wrong (in some sense), but we still don't know how the two points coreact.

 

If you want the answer is givent by avoiding the answer : just say : f(x=0)=f(x=L)..without any explanation (is this sufficient ?)