aiqbench takeQuantum Comms

Northwestern University researchers have demonstrated that fragile quantum signals can coexist with high-capacity classical internet traffic within the same fiber-optic cable over a 24.4-kilometer link, achieving entanglement distribution with greater than 94% fidelity despite commercial data interference. This breakthrough validates the feasibility of integrating future quantum networks into existing telecommunications infrastructure without requiring dedicated new fibers or isolating channels for each signal type.

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Quantum internet leaves the lab

GDELTJuly 22, 20264 min read

Quantum information is notoriously fragile. Internet traffic is anything but. Yet Northwestern University scientists have demonstrated they can peacefully coexist inside the same fiber-optic cable. In a new study, researchers successfully sent entangled photons through a 24.4-kilometer fiber-optic cable connecting Evanston and downtown Chicago while the same cable simultaneously carried high-capacity internet traffic. Even amid the torrent of conventional data, the quantum signals remained remarkably intact — preserving entanglement with more than 94% fidelity. By allowing fragile quantum signals and powerful classical data streams to share the…

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