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American scientists have realized a quantum teleportation by moving a small amount of data inside light particles over a distance of 60 miles (or 100 km) through a network of optical fiber, a length that is four times longer than the past attempts.
The research verified that quantum teleportation is possible over long ranges of optical fiber. Previous experiments have transported various pieces of information over a longer distance in a free space, but now, with the capability to perform it through traditional fiber-optic wires it provides more versatility for system design.
This not have to be mistaken for the popular “beaming up” people method seen in fictional TV shows, since quantum teleportation includes the exchange, or distant reconstruction, of data secured in particles of light or matter. Teleportation is used in both quantum processing and communication, this offering possibilities for novel abilities such as stronger security and innovative code-developing, respectively. The primary way for quantum transportation was first suggested more than two decades ago and has been conducted by a number of expert teams, by using atoms or other means of teleportation
The new experiment engaged the exchange of quantum data included in a single photon — its particular time line in a series — to another photon located at more than 60 miles of optical fibers. This accomplishment was possible thanks to innovative single-photon sensors developed and created by US specialists. Only around 1% of photons go all the way via those fibers and the scientists could have never done the research without the new sensors that can evaluate this extremely weak force.
Until now, a lot of details were missing in fibers that transmitted information and ranges were very low. This new teleportation strategy might be used to create gadgets known as quantum repeaters that can resend information regularly and are able to improve the system’s possibilities, maybe enough to gradually develop a quantum online world. Formerly, scientists believed that these repeaters could need to depend on atoms and other support, instead of a light wave, a challenging technological task that also slows down the transmitted signal.
Different quantum levels can be utilized to bring information; the researches used various levels that show when in the series of time slices a certain photon comes to the destination. The teleportation technique is new, since the sensors were placed to narrow down specific quantum levels. The sensors depend on superconducting micro wires from molybdenum. They can list more than 75 % of incoming photons, exposing whether these are at the same or at a different time spot of only one nanosecond long. These tests were conducted at wavelengths widely used in telecom.
Because the research strained out and targeted only a restricted mixture of quantum levels, teleportation might be effective in only 20% of the signals at best. Due to their effective sensors, scientists teleported the preferred quantum data in 80% of the highest possible number of transmissions. All trials operate with a variation of starting qualities that surpass the past statistics with more than 66% and show the beneficial characteristics of the teleportation procedure.
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