Quantum teleportation is a process by which quantum information is sent from a transmitter to a receiver destination with the help of quantum entanglement, and despite the name, it is not a method of transportation, but of communication. Sending messages through this technology can be somewhat tricky, since the equipment must be perfectly aligned so that the signal is received correctly. However, scientists from the US National Institute of Standard and Technology have just recently achieved an unprecedented feat in the field of quantum teleportation. They were able to teleport information from a photon over 101 kilometers of optical cable.
This distance might not seem like a great deal, but it really is when you consider that “only about 1 percent of photons make it all the way through 100 km of fibre,” one of the researchers, Marty Stevens, said in a press release. “We never could have done this experiment without these new detectors, which can measure this incredibly weak signal.”
Obviously, it would be necessary to transmit a much larger amount of information so that the teleportation process can have any practical use, but the record opens up new possibilities to the field of quantum computing. The biggest challenge at the moment is to expand the usefulness of this technology to the point where it can compete with the Internet, which often use connections that span thousands of kilometers.
Source: The Optical Society