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[Wired] Physicists Broke Quantum Teleportation Record - Page 3

post #21 of 41
Quote:
Originally Posted by nolonger View Post

Apparently you can't send information this way.

You're right. Entanglement doesn't transfer information so the instantaneous transmission isn't violating the postulates of special relativity.
post #22 of 41
Quote:
Originally Posted by Sourtop View Post

You're right. Entanglement doesn't transfer information so the instantaneous transmission isn't violating the postulates of special relativity.

Why couldn't you just put the atoms in two different spots, and each motion indicates a 1 or a 0? I feel like with binary, almost anything can transfer information.
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post #23 of 41
Thats actually a nice idea. Gaming without lag and 39784389473YHz processers. Make it happen.
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post #24 of 41
This^
Since the effect is instant, you could be any distance and one will mirror the other in the opposite fashion. All you need is 2 of these links and have ways to manipulate each individually, and a way to detect these changes and you have 2 way communications that cannot be monitored, detected, deflected, or altered. Make a simple binary system and you have uninteruptible secure communications that is also instant.
post #25 of 41
Quote:
Originally Posted by jackeyjoe View Post

If I'm reading it right, that's what they are aiming for right now(to quote the article, they were able to teleport more than 1,100 photons in four hours, over a distance of 97 kilometers.). Basically some sort of communication across long distances without said communications technically covering those distances. I wouldn't mind being able to play games with people on the other side of the world without lag tongue.gif

lol... that should fix ur 400ms ping for when we play l4d2 rolleyes.gif... and i love this stuff... i actualy plan to minor in quantum mechanics tongue.gif... tbh i dont care how far away this can happen from in the slightest... im more interested in why it happens (somethign we still dont know)... it truly is an amazing field of study smile.gif
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post #26 of 41
Quote:
Originally Posted by SectorNine50 View Post

Why couldn't you just put the atoms in two different spots, and each motion indicates a 1 or a 0? I feel like with binary, almost anything can transfer information.

I'm not sure what you mean by "motion". There is no information transfer because the exact state one sees of the particle when measured is random. You can't choose the state to collapse the wave function so you can't choose what the other entangled particle's state would collapse to.

This is actually proven in the no-communication theorem.
post #27 of 41
Quote:
Originally Posted by SectorNine50 View Post

If you ask me, Schrodinger was out of his mind.
I've hidden in a box before, I remember the whole thing! I was most certainly alive...
Plus, wouldn't the cat observing it's own self make it alive by default?
Bah.

Seems plausible to me.
Quote:
Schrödinger's Cat: A cat, a flask of poison and a radioactive source are placed in a sealed box. If an internal Geiger counter detects radiation, the flask is shattered, releasing the poison that kills the cat. The Copenhagen interpretation of quantum mechanics implies that after a while, the cat is simultaneously alive and dead. Yet, when we look in the box, we see the cat either alive or dead, not both alive and dead.
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post #28 of 41
So when can we telefrag?
post #29 of 41
Quote:
Originally Posted by Sourtop View Post

I'm not sure what you mean by "motion". There is no information transfer because the exact state one sees of the particle when measured is random. You can't choose the state to collapse the wave function so you can't choose what the other entangled particle's state would collapse to.
This is actually proven in the no-communication theorem.

Maybe I'm not understand what's happening here then.

I took this as they managed to manipulate one particle, and see the other reaction as opposite. Wouldn't this manipulation and reaction alone allow transfer of data?

Quote:
Originally Posted by lordikon View Post

Seems plausible to me.
Quote:
Schrödinger's Cat: A cat, a flask of poison and a radioactive source are placed in a sealed box. If an internal Geiger counter detects radiation, the flask is shattered, releasing the poison that kills the cat. The Copenhagen interpretation of quantum mechanics implies that after a while, the cat is simultaneously alive and dead. Yet, when we look in the box, we see the cat either alive or dead, not both alive and dead.

This has always struck me as the "out of sight, out of mind" mentality that we go through as an infant.

I don't see how an object's state can simultaneously be polar opposites, just because someone hasn't observed it. Kind of like the question; if a tree falls in the woods, and no one hears it, does it make a sound? Yes it does, just no one observed it.

EDIT:
For those interested, I found this neat little video...

Edited by SectorNine50 - 5/22/12 at 11:35pm
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post #30 of 41
Quote:
Originally Posted by SectorNine50 View Post

Maybe I'm not understand what's happening here then.
I took this as they managed to manipulate one particle, and see the other reaction as opposite. Wouldn't this manipulation and reaction alone allow transfer of data?
This has always struck me as the "out of sight, out of mind" mentality that we go through as an infant.
I don't see how an object's state can simultaneously be polar opposites, just because someone hasn't observed it. Kind of like the question; if a tree falls in the woods, and no one hears it, does it make a sound? Yes it does, just no one observed it.
EDIT:
For those interested, I found this neat little video...

But what "data" is being transferred? You can't know beforehand what state the particle is going to be in so how could you ever know what "data" you're sending? For example, if me and a friend had a system set up where if he observes his particle to be in state 1 he turns his lamp on and if its 0 he doesn't do anything. Now, I want to tell him to turn his lamp on. What do I do? I can't force my particle to be in state 0 (so his will be in state 1) because there is only a probability it will actually be there. So when I observe the particle I have no idea what "data" I'm sending.

I think your problem is you're trying to think of quantum mechanics in terms of what one would call classical (or Newtonian) mechanics, but you have to think of it the other way around. An object can be in multiple states because it has a probability of being in any of them. It isn't until you actually observe the particle that you find out what state it is in.
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