Spooky Physics: Signals Seem to Travel Faster Than Light

[Overdog]

Originally Posted by Moontanman

So far I am not impressed with the whole spooky action at a distance thing. The idea about the colored bricks seems to explain the whole thing quite well. What am I missing here?

Maybe the fact that you actually get to determine what color the remote brick will be, from a distance, apparently instantaneously?

[Moontanman]

Originally Posted by Overdog

Maybe the fact that you actually get to determine what color the remote brick will be, from a distance, apparently instantaneously?

I don't follow you, isn't that exactly what you are doing with ther particles? At the beggining you don't know what the spins are but you know if one has a certain spin then you know what the other one is!?

[Overdog]

Originally Posted by Moontanman

I don't follow you, isn't that exactly what you are doing with ther particles? At the beggining you don't know what the spins are but you know if one has a certain spin then you know what the other one is!?

It's more complicated than that. Quantum state is transferred. Check out this article...

Quantum teleportation - Wikipedia, the free encyclopedia

Edit:

Here's another article...

In the October 23 1998 issue of Science, the physicists described how they used squeezed-state entanglement to teleport light. In previous teleportation experiments (announced over the last year by separate research groups in Austria and Rome), only two-dimensional discrete variables (e.g. the polarization states of a photon, or the discrete levels of a two-level atom) were teleported. In this recent experiment, however, every state, or the entire quadrature phase amplitude, of the light beam was teleported. In the Science article, the researchers explain that teleporting optical fields may someday be appropriate for the use in communication technology.

First quantum teleportation between light and matter

If it were just spin, the brick analogy might hold up...

[Moontanman]

Originally Posted by Overdog

It's more complicated than that. Quantum state is transferred. Check out this article...

Quantum teleportation - Wikipedia, the free encyclopedia

I hate to appear dense but this just seems to be a fancy obfuscation of knowing the possible states before hand and knowing what they are after because you already know the possibilities. IE the bricks are the same color but you don't know what color until you look at one of them. No matter how far apart they are looking at one allows you to know the other.

[freeztar]

It's not just about starting states. If you colored the Earth-brick yellow, the Jupiter-brick would instantly turn yellow.

[Moontanman]

Originally Posted by freeztar

It's not just about starting states. If you colored the Earth-brick yellow, the Jupiter-brick would instantly turn yellow.

Then you would have communication of information faster than light

[Overdog]

Maybe this one will explain it better...

Beam Me Up Scotty? A Q&A about Quantum Teleportation with H. Jeff Kimble: Scientific American

[Thunderbird]

Originally Posted by Moontanman

Then you would have communication of information faster than light

its not about speed, or traveling over distance's it is
Instantaneous.

[freeztar]

Originally Posted by Thunderbird

its not about speed, or traveling over distance's it is
Instantaneous.

Indeed. Quantum entaglement does not imply super-luminal speeds. Boerseun explained this well imo.

[Moontanman]

Originally Posted by freeztar

Indeed. Quantum entaglement does not imply super-luminal speeds. Boerseun explained this well imo.

Sooo, instantaneous isn't superluminal? I'm really trying to understand this, I'm not just being stubborn.