Prefix-Suffix System Achieves Perfect Fidelity on 13-Node Quantum Network
A research team implemented a prefix-suffix protocol for entanglement distribution across a 13-node quantum network, demonstrating perfect fidelity for the delivered states. The protocol, likely leveraging error-correcting code concatenation, eliminates decoherence-induced infidelity without traditional purification. This result sets a new benchmark for multi-node quantum networking with error-free operation.
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What this could mean
- 0–2 yearsPlausible
This enables the first demonstration of a 13-node quantum key distribution network with unconditional security, or a distributed quantum computing experiment using genuinely multi-partite entangled states, within two years.
Perfect fidelity removes the main bottleneck for practical multi-node applications; the same protocol can be applied directly to QKD or distributed quantum processing tasks, requiring only software-level integration on the existing hardware.
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