Marin IvezicNew Nature Photonics demo links two quantum networks into one 8‑user system, routing and even “teleporting” entanglement on demand—using a programmable multimode optical fiber (under £100). Big step toward a real quantum internet. Read: https://postquantum.com/quantum-research/linking-two-quantum-networks/ #QuantumInternet #Photonics
Linking Two Quantum Networks
A new paper in Nature Photonics by Natalia Herrera Valencia et al. (2025) reports a prototype quantum network that connects two previously separate networks into a single eight-user system. In practical terms, the team from Heriot-Watt University demonstrated a reconfigurable quantum photonic network that can route entanglement to different users on demand and even “teleport” entanglement across network boundaries. This achievement marks the first time two distinct quantum networks have been linked together, allowing one network to effectively talk to the other. It sets a new benchmark for the scale, versatility, and performance of quantum networks envisioned as the backbone