German scientists have developed a method to transmit information across a physical distance without a time delay, in what is known as “quantum teleportation,” however, in this case on a classical physics level and not at the quantum level, the press office of the Friedrich Schiller University of Jena reported.
“Elementary particles such as electrons and light particles exist per se in a spatially delocalized state,” one of the scientists Alexander Szameit said.
In such a system, there is a probability that these particles can exist in multiple places at the same time (phenomenon known as quantum entanglement.)
“Within such a system spread across multiple locations, it is possible to transmit information from one location to another without any loss of time,” according to the physicist.
This process is dubbed quantum teleportation and has been known for several years.In their experiment, Szameit and his colleagues demonstrated that teleportation exists not only on the quantum level but also in the classical world, with the use of specially entangled laser beams.
The team has proved that laser beams can be entangled on the classical level, using special polarizing plates spinning at a certain speed.
“As can be done with the physical states of elementary particles, the properties of light beams can also be entangled,” said Marco Ornigotti, a co-investigator for the study.
In the study, the team encoded information into a specific polarization direction of the laser light and transmitted it to the shape of the laser beam through a form of teleportation, resulting in instant transmission at a short distance.
According to the scientists, the experiment proves that the concept of teleportation is not exclusive to quantum systems and can be generalized beyond the quantum realm. The difference between quantum and classical teleportation is that the former is nonlocal and the latter works only at extremely small distances.The scientists explained that their technology cannot be used to teleport a human being or any organic or non-organic substances from one location to another. Nevertheless, it could be used to create communication channels between both quantum and classical systems to create a robust hybrid communication infrastructure.