Scientists from Germany have shown that teleportation of information is possible not only at the quantum level, but also in the world of classical Newtonian physics, although it works somewhat differently than in the world of elementary particles.
German physicists have developed a technique that allows you to virtually instantly teleport information about some properties of matter over short distances, not at the quantum level, but at the usual level, the press service of the Friedrich Schiller University in Jena reports.
“Elementary particles, such as electrons and photons, exist, strictly speaking, in a special“smeared”state, in which their position in space cannot be accurately determined. Within such a system, we can transfer information from one point in this "smeared" area to another, without wasting time. We call this process quantum teleportation,”said Alexander Szameit from the University of Jena (Germany).
Zameit and his colleagues have found a way to carry out such information transfer not in the world of quantum physics, but in the "ordinary" macrocosm, using a set of laser beams, in a special way interconnected.
As scientists have shown, the rays of light can be "confused" with each other not on a quantum, but on a classical level, using special polarizing plates rotating at a certain speed. If these beams are then passed through a device that performs the light version of the logical operation CNOT ("OR"), then the information contained in one beam will be teleported to the second.
The information in this case is the polarization of the laser beam - the direction in which it was "twisted". Experiments by Zamate and his colleagues have shown that this data can be instantly teleported between two laser beams if they are close enough to each other.
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The successful completion of such an experiment, according to the authors of the article, suggests that teleportation is a universal phenomenon for our Universe, and not an exclusive feature of the quantum microcosm. The difference between quantum teleportation and classical teleportation is that the first is non-local and can work at any distances, while the second will work only at very short distances.
Scientists emphasize that the technique they have created and this phenomenon itself cannot be used to teleport a person or other living or inanimate matter from one point to another, but it can be used to create communication channels between quantum and classical devices and to quickly transfer information inside computing devices.