Chinese scientists have successfully teleported a single-photon qubit from the earth to Micius communications satellite, located in the near-earth orbit.
The experiment lasted for 32 days, during which scientists sent millions of photons from an observatory to the orbit. Only 911 of them were successfully teleported. The goal of the experiment was to establish quantum communication.
Teleportation is not something new for quantum optics. It relies on the phenomenon of entanglement. It lies in the fact that two quantum objects, formed at the same time, preserve the connection between them even at large distances. The change of one object influences the state of the other. However, quantum entanglement can be easily lost. Therefore, scientists used the observatory in Tibet Mountains and Micius satellite in a Sun-synchronous orbit.
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