2011-04-18

Quantum Teleportation Breakthrough

Fox News - Fair & Balanced

Quantum Leap: Scientists Teleport Bits of Light - FoxNews.com


Physicists used this complex lab setup to teleport quantum packets of light from one place to another.


Our world is getting closer to "Star Trek" every day
.
Scientists announced Wednesday they've been able to teleport special bits of light from one place to another -- "Beam me up, Scotty," in other words. The advance doesn't necessarily mean we'll ever be able to teleport people, unfortunately, but it does represent some pretty mind-bending physics.





Quantum teleportation - Wikipedia, the free encyclopedia

Quantum teleportation, or entanglement-assisted teleportation, is a process by which a qubit (the basic unit of quantum information) can be transmitted exactly (in principle) from one location to another, without the qubit being transmitted through the intervening space. It is useful for quantum information processing, however it does not immediately transmit classical information, and therefore cannot be used for communication at superluminal (faster than light) speed. It also does not transport the system itself, and does not concern rearranging particles to copy the form of an object.


Teleportation


 [...] in quantum teleportation, two objects B and C are first brought into contact and then separated. Object B is taken to the sending station, while object C is taken to the receiving station. At the sending station object B is scanned together with the original object A which one wishes to teleport, yielding some information and totally disrupting the state of A and B. The scanned information is sent to the receiving station, where it is used to select one of several treatments to be applied to object C, thereby putting Cinto an exact replica of the former state of A.
Collected from: Teleportation





Quantum Teleportation Is a Reality - PCWorld

[...] the researchers developed a "broadband, zero-dispersion teleportation apparatus" and a whole new set of "hybrid protocols involving discrete- and continuous-variable techniques in quantum information processing for optical sciences,"[...]
The research was led by University of Tokyo researchers from the Department of Applied Physics, with some intercontinental assistance from the Centre for Quantum Computation and Communication Technology at the University of New South Wales.



University of New South Wales, Sydney, AustraliaUNSW: The University of New South Wales - Sydney Australia - News - Quantum teleporter breakthrough 


"One of the limitations of high-speed quantum communication at present is that some detail is lost during the teleportation process. It’s the Star Trek equivalent of beaming the crew down to a planet and having their organs disappear or materialise in the wrong place. We’re talking about information but the principle is the same – it allows us to guarantee the integrity of transmission. 
"Just about any quantum technology relies on quantum teleportation. The value of this discovery is that it allows us, for the first time, to quickly and reliably move quantum information around. This information can be carried by light, and it’s a powerful way to represent and process information. Previous attempts to transmit were either very slow or the information might be changed. This process means we will be able to move blocks of quantum information around within a computer or across a network, just as we do now with existing computer technologies. 
"If we can do this, we can do just about any form of communication needed for any quantum technology."




Labels: ,