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Teleportation without tangling

06 Sep

Teleportation Research in this area is rapidly gathering pace. In 2007 it was made an important discovery. Physicists have proposed a method of teleportation, which does not require entanglement. After all, this is the most difficult element of the quantum teleportation and if we can not use it, you can avoid a lot of associated problems.

So, that is the essence of this methodscientists take a beam of rubidium atoms, transfer all its information in a beam of light, send this ray of the fiber optic cable, and then recreate the original beam of atoms in a different place. Responsible for the study Dr. Aston Bradley called this method of classical teleportation.

But, what makes this method possible? It can occur because of the recently discovered state of matter, “Bose-Einstein condensate”, or KBE (The picture on the left, he promoted in elliptical trap). This is one of the coldest substances in the universe. In nature, the lowest temperature can be found in space: 3 Kelvin, ie three degrees above absolute zero. This is due to the residual heat of the Big Bang, which still fills the universe. But there is a KBE from a millionth to a billionth of a degree above absolute zero. This temperature can only be obtained in the laboratory.

When a substance is cooled to state KBE, all atoms fall down to the lowest energy level and begin to vibrate in unison (are coherent). The wave functions of these atoms overlap, so in some ways resembles a giant KBE “sverhatom.” The existence of this substance predicted by Einstein and Bose Shatendranat in 1925., But the condensate was discovered only in 1995 in the laboratories of the Massachusetts Institute of Technology and the University of Colorado.

So now let us consider the principle of teleportation with KBE. Initially recruited superordinate substance of rubidium atoms in a state KBE. Then on this route normally KBE rubidium atoms, electrons, which are also beginning to fall to the lowest energy level, emitting rays of light, which in turn are passed by fiber. Moreover, this ray contains all the necessary information to describe the substance of the original beam. After passing through the cable, the light beam falls into a different KBE, which converts it to an initial flow of matter.

Scientists believe that this method is very promising, but it has its own problems. For example KBE very difficult to obtain, even in the laboratory.

 

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