Entanglement??

[WillieB]

A question to ponder:

 

This is about entanglement. Would it be inaccurate to state----

 

“Entangled particles are always created or influenced to possess exactly equal and opposite characteristics of spin, charge, and vector of momentum. Thus, when measured, irrespective of the distance between the points of measurement, it is not surprising that opposite characteristics will be discovered.” ????

[sanctus]

Yes and no.

Yes if you know in which direction to measure and no in case you don't.

 

Suppose they have spin up down along a given z axis, so if it the same axis both observers measure it is ok, but if there is another axis they measure then probability comes into play.

 

At least this is what I remember.

 

Also I move this to physics and math forum...

[WillieB]

Sanctus:

 

I am afraid that your answer ia just as confusing and enigmatic as quantum theory itself. Can you expand on it or clarify it? Thanks for your interest.

 

PS. Why did you move this thread? Though entanglement is a proper subject for this forum it is also a cosmological phenomenum.

[sanctus]

As to the moving, it seemed to me more a general physics question (you know like recombination is a general particle physics subject, but is also present in cosmology), but if you want I can put it back...

 

Trying to clarify:

If you have a particle with spin along the z-axis and you measure the spin along another axis, for example x. You'll get with a certain probability up (along x-axis) and with a certain probability down (still along the x-axis).

Now, if you take two entangled particles with spin along the z-axis (one up and hence one down), but the observers measure the spin along the x-axis then you have a non-zero and a non-negligible probability that both observers measure the same direction of the spin.

But if by chance or because they knew (what implies the distance being cclose enough not to destroy causality) and they measure the spin along the z-axis, then you'll actually always measure one spin up and one spin down, so your statement is ok.

Hope it helped, don't hesistate to ask more details, I'll give my best to answer your question...

[Drum]

Nice try Sanctus .....

 

Entanglement?? - Theory of Everything

 

perhaps this will help

 

Drum

[sanctus]

Nice try Sanctus .....

 

Entanglement?? - Theory of Everything

 

perhaps this will help

 

Drum

Wow, getting quoted in another forum!

 

But to the other physicists lurking around here, do you think my theory (coming from a real one but out of memory) is right?

 

Drum, by "nice try" do you mean "nice try but it is wrong" or "nice try to explain something"?

[Drum]

No .... I was by no means being critical ...

 

I sincerely meant nice try ..... from memory without looking it up I thought you did extremely well. I understood what you were saying.

 

cheers .... Drum :)