Mathematical Breakthrough Sets Out Rules For More Effective Teleportation

dsinc sends this news from the University of Cambridge: "For the last ten years, theoretical physicists have shown that the intense connections generated between particles as established in the quantum law of ‘entanglement’ may hold the key to eventual teleportation of information. Now, for the first time, researchers have worked out how entanglement could be 'recycled' to increase the efficiency of these connections. Published in the journal Physical Review Letters, the result could conceivably take us a step closer to sci-fi style teleportation in the future, although this research is purely theoretical in nature. ... Previous teleportation protocols have fallen into one of two camps, those that could only send scrambled information requiring correction by the receiver or, more recently, "port-based" teleportation that doesn't require a correction, but needs an impractical amount of entanglement – as each object sent would destroy the entangled state. Now, physicists from Cambridge, University College London, and the University of Gdansk have developed a protocol to provide an optimal solution in which the entangled state is 'recycled,' so that the gateway between particles holds for the teleportation of multiple objects. They have even devised a protocol in which multiple qubits can be teleported simultaneously, although the entangled state degrades proportionally to the amount of qubits sent in both cases."

"More effective teleportation"!?!?!?!

[Anonymous Coward]

Bit optimistic, aren't we?

Where does extra energy go?

[pclminion]

Suppose I teleport an object from a height of 1000 feet to a height of 0 feet about sea level. There has been a loss of gravitational potential energy -- where does this energy end up? Conversely, if teleporting the object to a higher elevation, how is the gravitational PE imparted to the system?

Re:The idea of Teleportation

[celle]

"LOL but on Slash, sci-fi is real. Space elevators, warp drives, Mars colonies and the hundreds of attendant magical technologies and fantasy materials are just a question of, like, how hard we really want them to happen."

      And remember Dick Tracy's video wristwatch was described in the 1930s when radio and telephone was less than 50 years old. We have it now and in other forms such as cell phones and tablets less than 75 years later. Slashdot is visited by people in research and science fiction, who knows what could be in the next 100 years if we put the "old nose to the grindstone".