The Cambridge Research Laboratory of Toshiba Europe was able to create an “un-hackable” quantum network. Researchers were able to send quantum information over 600-kilometers-long optical fibers, creating a new distance record. This research paves the way for large-scale quantum networks that could be used to exchange information securely between large distances.
The new technology, dual-band stabilization, stabilizes the environmental fluctuations that occur within the fiber. This creates the opportunity to send quantum information across states and potentially countries. This finding could help to create nearly “un-hackable” communications and create quantum clusters that increase the computing power of devices.