Towards an Unhackable Quantum Internet?

Interesting, but technical.  General implications for personal or enterprise use?

Towards an Unhackable Quantum Internet
Harvard University John A. Paulson School of Engineering and Applied Sciences
Leah Burrows

Harvard University and Massachusetts Institute of Technology researchers have invented a technique for correcting signal loss in quantum-signal transmission, using a prototype quantum node that captures, stores, and entangles bits of quantum information. This is a key development toward a practical and unhackable quantum Internet, and a step toward realizing long-distance quantum networks. The researchers used silicon-vacancy color centers in diamonds, in effect integrating an individual color-center into a nanofabricated diamond cavity, which corrals information-bearing photons and forces their interaction with the single color-center. The device stores the quantum data for milliseconds—sufficient for information to be conveyed over thousands of kilometers—with electrodes embedded around the cavity delivering control signals to process and preserve the data in the memory. Harvard's Mikhail Lukin said, "This is the first system-level demonstration ... that shows clear quantum advantage to communicating information using quantum repeater nodes."