Imperial College Team Reaches 50% Loss Threshold for Quantum Networks
Researchers at Imperial College London demonstrated hybrid networking protocols that push dependable quantum processor links from the prior d+1 distance-unit limit out to 2d+1 units. The approach also restores perpendicular connectivity from roughly half of d+1 to the full d range. The team frames this as a step toward larger distributed quantum systems where operations are less immediately constrained by loss.
This could let near-term metropolitan quantum network testbeds connect small quantum processors over existing lossy fibre spans more reliably, without needing full quantum repeaters.