Scientists Save Quantum States in a Diamond, a Tiny Step Toward a Quantum Internet

Scientists Save Quantum States in a Diamond, a Tiny Step Toward a Quantum Internet

by Ryan F. Mandelbaum, Gizmodo

A newly created system can enhance quantum communications over longer distances—a small but crucial step toward a quantum internet.

We’re in the early stages of a quantum boom, as researchers are attempting to augment our computing and communications capabilities with systems employing the weird mathematics that govern subatomic particles. One of the core goals of this era are networks that can transmit quantum information over longer scales, which scientists think could lead to advances in cryptography, sensing, or even distributed quantum computation. But these are mainly dreams; such a network cannot truly exist without components like repeaters to extend the distance that quantum information can travel or transducers that can convert quantum information into transmittable photons. This new paper brings the field closer to inventing a quantum repeater.

“Classical repeater stations measure that signal and amplify a copy of it,” Harvard physics graduate student Mihir Bhaskar told Gizmodo. “This is how all information gets across the world. In building a quantum network, we’re trying to do a similar thing, but we’re communicating with single photons.”

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