Quantum Teleportation across the Danube Demonstrated

ScientificAmerican.com: The Danube River is known for its beauty and has been immortalized in song. Now researchers have employed the water body as a testing ground for quantum teleportation. Scientists report today in the journal Nature that they have successfully teleported photons more than 600 meters across the famous waterway.

The results indicate that quantum teleportation is feasible over long distances and under real-world conditions, the scientists say. “Our result is a step towards the implementation of a quantum repeater, which will enable pure entanglement to be shared between distant parties in a public environment and eventually on worldwide scale.”