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[XT] Einstein's action at a distance: 10,000 times faster than light - Page 17

post #161 of 174
Meh it was fun while it lasted tongue.gif
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post #162 of 174
SPOOKY!!thumb.gif But just imagine!!!!!
post #163 of 174
You can not send messages from 1 entangled photon to another but couldn't you still use it as a triggering system? I mean, trigger an alarm if the super state collapses no matter the result of the collapse. Or is this not possible? Perhaps you guys can enlighten me.

I mean, measuring an entangled photon from 1 place, resulting in the collapse of the second entangled photon at the other place, triggering an alarm.
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post #164 of 174
Get out your foil hats.
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post #165 of 174
Quote:
Originally Posted by Sonolegolas View Post

You can not send messages from 1 entangled photon to another but couldn't you still use it as a triggering system? I mean, trigger an alarm if the super state collapses no matter the result of the collapse. Or is this not possible? Perhaps you guys can enlighten me.

I mean, measuring an entangled photon from 1 place, resulting in the collapse of the second entangled photon at the other place, triggering an alarm.

You can use entangled particles to send messages.

Sending an alarm is information.... the universe limits how fast information can travel. If you can send an alarm, you can send information and there for re-purpose it. (Basically, you can send messages rather than just alarms because you can send useful data.)
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post #166 of 174
How do you send any information that isn't random?
post #167 of 174
Quote:
Originally Posted by MintMouse View Post

How do you send any information that isn't random?

Wiki has a good write up: http://en.wikipedia.org/wiki/Quantum_teleportation


The physics is above my pay grade though...
Edited by DuckieHo - 3/18/13 at 12:28pm
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post #168 of 174
Quote:
Originally Posted by DuckieHo View Post

You can use entangled particles to send messages.

Sending an alarm is information.... the universe limits how fast information can travel. If you can send an alarm, you can send information and there for re-purpose it. (Basically, you can send messages rather than just alarms because you can send useful data.)

As I understand it now is that information is always exchanged between the photons when they are measured but the information can carry no message because its outcome is always random (like MintMouse said). So in a sense the scientist would need to know beforehand what to do when the super state of their photon collapses in my previous example. Interesting stuff. I think that its possible you could create a number of entangled pair, link them to a something like a neon sign in the shape of a letter so that you can essentially form words. I'm sure those scientists have already figured out a way to indirectly send messages.
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post #169 of 174
Quote:
Originally Posted by Sonolegolas View Post

Quote:
Originally Posted by DuckieHo View Post

You can use entangled particles to send messages.

Sending an alarm is information.... the universe limits how fast information can travel. If you can send an alarm, you can send information and there for re-purpose it. (Basically, you can send messages rather than just alarms because you can send useful data.)

As I understand it now is that information is always exchanged between the photons when they are measured but the information can carry no message because its outcome is always random (like MintMouse said). So in a sense the scientist would need to know beforehand what to do when the super state of their photon collapses in my previous example. Interesting stuff. I think that its possible you could create a number of entangled pair, link them to a something like a neon sign in the shape of a letter so that you can essentially form words. I'm sure those scientists have already figured out a way to indirectly send messages.

Use the two states as binary? This was obvious to me but alas my knowledge of entangled particles is scarce at best
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post #170 of 174
Quote:
Originally Posted by dmanstasiu View Post

Use the two states as binary? This was obvious to me but alas my knowledge of entangled particles is scarce at best

Yes, that's the obvious part.... the tricky part is how to read the state.

Binary states like up/down are already being used for quantum computing and encryption research.
Edited by DuckieHo - 3/18/13 at 2:03pm
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