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Scientists have demonstrated for the first time the ability to teleport quantum information across points in a network not physically connected to each other, according to research released yesterday. The advance marks a key step forward in the development of a scalable quantum internet. 

The technology relies on a phenomenon known as quantum entanglement, which effectively links the state of separate particles—for example, which way a particle is spinning—into a collective super-state (go deeper). Typically, quantum information can be passed through fiber optic cables via light particles, a method that incurs a significant loss as the light bounces around inside the cable.

Because there is no physical medium when particles become entangled, the method allows information to be passed without loss—critical for future networks involving thousands of quantum computers. The experiment successfully demonstrated the technique across three separate nodes.

Want to learn more about quantum computing? Start here.