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 Posted: Wed May 24, 2006 9:03 am
so, I read this article in Discovery magazing about a recent teleportation experiment which succeeded. Their explaination was as simple... as they dared to go hwr I shall recount what they said. Three atoms: A,B, and C (I have no idea why they didn't call them Bob, Ivan and Sven) all three unlike each other. You connect atoms A and B (they were not clear about this, said something about exchanging photons) and you connect atoms B and C (with equal lack of clarity, it's not like you're plugging them together with wires) and through B the information of A seeps into C and C inherits the qualities of A and I assume here they meant their states become equal.
This is extremely fascinating. THINK OF THE POSSIBILITIES. still does anyone understand it better?
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Posted: Wed May 24, 2006 5:34 pm
I believe you are referring to entangling A and B, then entangling B and C, and thus A and C are also entangled by inference.
Try looking up EPR paradox (EPR is Einstein, Podovsky and Rosen if memory serves).
As far as I'm aware, the idea is that it is impossible to transmit information via the link, thus causing it to not violate the laws of physics by transmitting data faster than the speed of light.
Which would make them moderately impossible to use for teleportation.
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Posted: Wed May 24, 2006 8:57 pm
Dave the lost I believe you are referring to entangling A and B, then entangling B and C, and thus A and C are also entangled by inference. Try looking up EPR paradox (EPR is Einstein, Podovsky and Rosen if memory serves). As far as I'm aware, the idea is that it is impossible to transmit information via the link, thus causing it to not violate the laws of physics by transmitting data faster than the speed of light. Which would make them moderately impossible to use for teleportation. but this is exactly what they reported as having been done in the Discovery magazine. they reported a successful experiment involving teleportation!!! they did this!!! Discovery magazine!!! how is this impossible then?
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Posted: Thu May 25, 2006 4:29 am
I remember an experiment done in Australia some time ago with successful teleportation...
quantum teleportation sounds so cool, but each method of teleporting would have to use a different construction because things being transmitted can be so different...
I really have to dig out my notes on this...
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Posted: Thu May 25, 2006 6:59 am
poweroutage Dave the lost I believe you are referring to entangling A and B, then entangling B and C, and thus A and C are also entangled by inference. Try looking up EPR paradox (EPR is Einstein, Podovsky and Rosen if memory serves). As far as I'm aware, the idea is that it is impossible to transmit information via the link, thus causing it to not violate the laws of physics by transmitting data faster than the speed of light. Which would make them moderately impossible to use for teleportation. but this is exactly what they reported as having been done in the Discovery magazine. they reported a successful experiment involving teleportation!!! they did this!!! Discovery magazine!!! how is this impossible then? I don't know, any chance of getting a copy of the article? A link if it's online and available to non-subscribers for example. The whole can't manipulate so can't send data so don't transmit information faster than speed of light is just a hypothesis as to how the results could fit within the current laws of physics.
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Posted: Thu May 25, 2006 9:22 am
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Posted: Thu May 25, 2006 9:24 am
oh sweet! I found it!! This is exactly the one I read, and it's "Discover" not "Discovery" Magazine. here it is:
http://www.discover.com/issues/oct-04/rd/one-step-closer-to-teleportation/
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Posted: Thu May 25, 2006 10:20 am
There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance.
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Posted: Thu May 25, 2006 1:13 pm
Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why?
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Posted: Thu May 25, 2006 5:22 pm
poweroutage Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why? Now that's the best question of all! But even if we knew the answer, I doubt we'll be able to transport macroscopic objects like people. So no Star Trek for us, unfortunately.
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Posted: Thu May 25, 2006 9:55 pm
Cynthia_Rosenweiss poweroutage Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why? Now that's the best question of all! But even if we knew the answer, I doubt we'll be able to transport macroscopic objects like people. So no Star Trek for us, unfortunately. hahahahahaha the more I learn about QM the crazier I think I'm getting. well.... looks like a fun road ahead at least. are you sure no star trek for us? I mean maybe it's beyond our technological imagination now... well it will be tricky teleporting a complete person, I heard you'd have to take them apart and even then you couldn't guarantee you can put them back properly.
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Posted: Fri May 26, 2006 8:04 am
poweroutage Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why? I am not sure why with the particls, but with the Junctions, it is because they are in an entangled state so measuring the state of one alters the possible states of the other.
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Posted: Fri May 26, 2006 1:25 pm
Cynthia_Rosenweiss poweroutage Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why? Now that's the best question of all! But even if we knew the answer, I doubt we'll be able to transport macroscopic objects like people. So no Star Trek for us, unfortunately.
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Posted: Fri May 26, 2006 2:30 pm
QuinnBW Cynthia_Rosenweiss poweroutage Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why? Now that's the best question of all! But even if we knew the answer, I doubt we'll be able to transport macroscopic objects like people. So no Star Trek for us, unfortunately. where have you posted that?
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Posted: Sat May 27, 2006 2:24 am
Beyond_Oblivion poweroutage Beyond_Oblivion There is also the teleportation of states between coupled Josephson junctions which has the possibility of being used to instantaneously transmit information over any distance. so why does C inherit the qualities of A? just by interference? just like that? why? I am not sure why with the particls, but with the Junctions, it is because they are in an entangled state so measuring the state of one alters the possible states of the other. But why does that happen? wink Quinn: 1. Takes a lot of heat? 2. Heisenberg was german, but I don't know of any germans challenging uncertainty, link/source?
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