it is published in the Science magazine, briefly reports Scientific and technical university of China about it.
During the experiments violation of inequalities Bella has been shown (and, as a result, the principle of locality). Efficiency of information transfer by a new method on 17 orders exceeds indicators of widespread commercial fiber-optic cables.
Quantum teleportation was carried out by means of pair of satellites and three earth-based stations between which distance varies within 500-2000 kilometers. Between two of such earth-based stations the distance has made record 1,2 thousand kilometers.
Quantum teleportation represents transfer of a quantum condition of a particle on distance. The carried couple of linked (tangled) particles is for this purpose used: according to quantum mechanics, even during removal of such particles from each other they save information on a condition of the partner (the principle of local realism is carried out).