Russian scientists were able to prove that teleportation in the quantum world can go not only in one direction, but in two directions at once.
Back in 1993, quantum teleportation was described at a theoretical level.
Physicists under the leadership of Charles Benett stated that photons and atoms, if they were "entangled" at the quantum level, can be transmitted at any distance, except astronomical, through the usual communication channel.
At the same time, experts believed that such teleportation could only be one-way.
However, scientists from the Russian Quantum Center in Moscow have shown that this process can also be bilateral.
In the standard procedure of quantum teleportation, the sender and the receiver have two particles "entangled" with each other at the quantum level. For teleportation, the sender simultaneously measures the state in which both of its particles were.
Recent studies have shown that two-way teleportation can be accomplished by measuring the states of particles using a special type of measurement, the so-called "weak measurements".
In this case, high accuracy should not be expected, but the entanglement for two-way transmission and receipt of quantum information will be preserved.
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According to experts, two-way teleportation will be of interest to both theoretical physicists and practicing scientists.