Chinese scientist successfully Network test for quantum encryption over the distance of 1,200 kilometers.

From the news, the Chinese satellite, the world's first quantum up into space to test the quantum network, remote. Today, the test was successful, and can create a network between 2 properties at the base station of 1,203 km.

Steps to create the Quantum Entanglement property of the network relies on photon particles by the equipment on the satellite is beaming particles photons to split the beam into the Crystal, which will separate the photon particles are two provisions that are involved. Photon particles both reached base station on the surface of the Earth. By one station acts as a "station sent" and the other as a "station receive" by the data from the particle's spin state measurement is the source to find out the status of the destination always particles spin. Where such information makes it possible to create an encryption key, but only the sender and recipient information.

The advantages of this method of communication is data sent does not travel through any physical intermediaries between the particles. Additionally, try to listen to the State of the spin particles change to. Make efforts to spy virtually impossible. Result communication by using data encryption techniques, it has very high security.

Previous experiments rely on the high test on the surface of the Earth (This beam can pass each other without anything blocking) as his limitations in distance, because the beam passes through the atmosphere on Earth, causing Signal Loss high distance it is about 100 kilometers, but the beam via satellite. Signal Loss helps low because the atmosphere is short. And visibility over