Rupert Ursin and his colleagues at the Institute for Experimental Physics in Vienna fired a laser through a barium borate crystal to generate two pairs of photons. One pair is entangled, which means that if something disturbs the state of one, the other feels the effects as well--even when they are not physically connected. By separating the entangled pair, the scientists successfully transported information about the state of one photon to the other. Using fiber-optic cable laid under the water in sewer pipes, together with microwaves sent across the air above the water, three distinct states were teleported across the Danube. Over the course of a 28-hour experimental run, the system was correct 97 percent of the time.
No comments:
Post a Comment