It all begins with a single atom
-
Scientists succeed in teleporting information from one atom to another 3 feet away [^]
Steve _________________ I C(++) therefore I am
Maybe I'm the only one who misunderstands quantum entanglement here, but how is this in anyway teleportation, or even communication? I thought that when two atoms where entangled, when you observe one, and then the other, you will both see the same thing. However, because you cannot influence the measured result, you cannot communicate. Furthermore, because you don't know when one has been measured, even if the collapse of the wave function happens instantaneously, a message using standard, slower than light communication would need to be transmitted. In other words, entanglement lets you see a random value, with the (amazing) catch that someone with the other particle will see the same random value, when they look.
-
Theoretically, the particles could be an infinite distance apart, and viola! instant communication. No speed of light constraints! Wonder why they chose 1 meter, was it the size of the room? :)
- S 50 cups of coffee and you know it's on! A post a day, keeps the white coats away!
Steve Echols wrote:
Theoretically, the particles could be an infinite distance apart, and viola! instant communication.
... of RANDOM INFORMATION ONLY. When you measure the value of one entangled particle you know what the other one is. When you attempt to do anything to set the value of one particle you break the entanglement. This is not, will not, can not, and never will be usable as an actual communication device.
Today's lesson is brought to you by the word "niggardly". Remember kids, don't attribute to racism what can be explained by Scandinavian language roots. -- Robert Royall
-
I love this stuff, really feels like we're getting somwhere with the whole teleportation thing doesn't it. Once again, science fact only a few years behind science fiction. Its also the very reason 'skynet' scares the crap outta me!
I can't say I am getting excited about it. YES, it is cool, but it is REALLY not teleportation, it's about long range communications if you ask me. I guess they are working layers, trying to figure out how to get data form one location to another very fast in an effort to figure out the whole 'take it apart and create a stream' thing latter. Personally, the way communications are speeding up I would work on that harder part first and let the comms people work on the transport in parallel.
-
You'll be alright if there's no flies on you... ;)
oooo, the Jedi's will feel this one....
-
Maybe I'm the only one who misunderstands quantum entanglement here, but how is this in anyway teleportation, or even communication? I thought that when two atoms where entangled, when you observe one, and then the other, you will both see the same thing. However, because you cannot influence the measured result, you cannot communicate. Furthermore, because you don't know when one has been measured, even if the collapse of the wave function happens instantaneously, a message using standard, slower than light communication would need to be transmitted. In other words, entanglement lets you see a random value, with the (amazing) catch that someone with the other particle will see the same random value, when they look.
its not in its present form, in any way, teleportation or comunication but It does however demonstrate the instantaneous transfer of information across vast(infinite) distances and therefore qualifies as a 'first step' in the right direction in my opinion. Exciting times!
-
Maybe I'm the only one who misunderstands quantum entanglement here, but how is this in anyway teleportation, or even communication? I thought that when two atoms where entangled, when you observe one, and then the other, you will both see the same thing. However, because you cannot influence the measured result, you cannot communicate. Furthermore, because you don't know when one has been measured, even if the collapse of the wave function happens instantaneously, a message using standard, slower than light communication would need to be transmitted. In other words, entanglement lets you see a random value, with the (amazing) catch that someone with the other particle will see the same random value, when they look.
As I understand, reading "A" is the act of sending the "A was just read" information. But I am not very good at that stuff. If the guys working on it would go on a killing spree everytime a news article about it starts with a Star Trek teleportation reference, we'd... umm.... have a lot of killing sprees in scientific circles. Or something like that.
-
Maybe I'm the only one who misunderstands quantum entanglement here, but how is this in anyway teleportation, or even communication? I thought that when two atoms where entangled, when you observe one, and then the other, you will both see the same thing. However, because you cannot influence the measured result, you cannot communicate. Furthermore, because you don't know when one has been measured, even if the collapse of the wave function happens instantaneously, a message using standard, slower than light communication would need to be transmitted. In other words, entanglement lets you see a random value, with the (amazing) catch that someone with the other particle will see the same random value, when they look.
You're not. See my post upthread. IIRC the only thing you have wrong is that the entangled particles will have opposite values (spin up and spin down) not identical ones. Anyway, here's a lance; there're lots of windmills of ignorance we need to tilt at.
Today's lesson is brought to you by the word "niggardly". Remember kids, don't attribute to racism what can be explained by Scandinavian language roots. -- Robert Royall
-
Scientists succeed in teleporting information from one atom to another 3 feet away [^]
Steve _________________ I C(++) therefore I am
The problem is, we need to teleport the atom, not the atom's information. Maybe they should look into XML. :) Marc
Available for consulting and full time employment. Contact me. Interacx
-
The problem is, we need to teleport the atom, not the atom's information. Maybe they should look into XML. :) Marc
Available for consulting and full time employment. Contact me. Interacx
Marc Clifton wrote:
The problem is, we need to teleport the atom, not the atom's information.
But isn't that the same thing if we're talking about atoms......? Starts getting in the realms of philosopy from here on in :)
-
Marc Clifton wrote:
The problem is, we need to teleport the atom, not the atom's information.
But isn't that the same thing if we're talking about atoms......? Starts getting in the realms of philosopy from here on in :)
MartinABooker wrote:
Starts getting in the realms of philosopy from here on in
Exactly. :) Besides, how do we know what comprises "all" of an atom's information? Isn't that being a bit presumptious? Marc
Available for consulting and full time employment. Contact me. Interacx
-
Steve Echols wrote:
Theoretically, the particles could be an infinite distance apart, and viola! instant communication.
... of RANDOM INFORMATION ONLY. When you measure the value of one entangled particle you know what the other one is. When you attempt to do anything to set the value of one particle you break the entanglement. This is not, will not, can not, and never will be usable as an actual communication device.
Today's lesson is brought to you by the word "niggardly". Remember kids, don't attribute to racism what can be explained by Scandinavian language roots. -- Robert Royall
-
Caslen wrote:
but there was a hole in the only bucket they had
Then patch it, dear Caslen. Dear Caslen, patch it.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”
With what shall I patch it, dear Henry, dear Henry? With what shall I patch it, dear Henry, with What? Iain. (you can thank my Mum's record collection for me knowing those lyrics. "With straw" was the next one, but after that I forget!
Codeproject MVP for C++, I can't believe it's for my lounge posts...
-
Steve Echols wrote:
Theoretically, the particles could be an infinite distance apart, and viola! instant communication.
... of RANDOM INFORMATION ONLY. When you measure the value of one entangled particle you know what the other one is. When you attempt to do anything to set the value of one particle you break the entanglement. This is not, will not, can not, and never will be usable as an actual communication device.
Today's lesson is brought to you by the word "niggardly". Remember kids, don't attribute to racism what can be explained by Scandinavian language roots. -- Robert Royall
-
With what shall I patch it, dear Henry, dear Henry? With what shall I patch it, dear Henry, with What? Iain. (you can thank my Mum's record collection for me knowing those lyrics. "With straw" was the next one, but after that I forget!
Codeproject MVP for C++, I can't believe it's for my lounge posts...
Iain Clarke wrote:
"With straw" was the next one, but after that I forget
Correct. However it turns out the straw is too long. Henry is advised to cut it. Asks what to cut it with. Told to use axe. Advises axe is blunt. Told to sharpen it. Says whetstone is too dry. Is told to wet it. Asks what to wet it with. Obviously, is told to use water. Asks what to fetch water with. Told to use bucket. There's a hole in the bucket dear Liza, dear Liza etc...... If your Mum's record was the standard one it was Harry Belafonte, a much underrated performer.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”
