Elementary Quantum Internet Tested Successfully
Quantum Physics has come a long way in the last 50 years, and with this new demonstration having been successful, the future is getting brighter. Physicists at the Max Planck Institute of Quantum Optics, located in Garching, Germany, transmitted information between nodes, which were formed from single atoms. This data that was transmitted was carried by a single photon. While it is still very far from becoming a standard household item, having a quantum network makes data theft nearly impossible by nature, due to the fact that quantum information cannot be cloned. Well, it’s something to look forward to anyway.
We have realized the first prototype of a quantum network, Stephan Ritter concludes. We achieve reversible exchange of quantum information between the nodes. Furthermore, we can generate remote entanglement between the two nodes and keep it for about 100 microseconds, whereas the generation of the entanglement takes only about one microsecond. Entanglement of two systems separated by a large distance is a fascinating phenomenon in itself. However, it could also serve as a resource for the teleportation of quantum information. One day, this might not only make it possible to communicate quantum information over very large distances, but might enable an entire quantum internet.
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