#1
#1 out of 124.76%
science2h ago
It sounded like science fiction, but scientists sent quantum data through 19 miles of regular internet cable without breaking the network
- Northwestern researchers teleported quantum states over 18.8 miles of fiber while the line carried 400-Gbps classical traffic.
- The experiment used a three-node quantum-state teleportation system with a Bell-state measurement at the fiber midpoint.
- The result shows quantum and classical networks can coexist on existing fiber infrastructure.
- The study clarifies that this is a proof of principle, not a finished commercial quantum internet.
- The work suggests using existing cables could reduce the need for new quantum-specific infrastructure.
- Security implications include the potential for harder detection of tampering in quantum-linked channels.
- The research builds on earlier milestones from QuTech and Fermilab in quantum teleportation over fiber.
- The Optica-published study emphasizes the practical coexistence of quantum and classical traffic in real-world cables.
- Researchers say the next steps include longer distances and more complex networks beyond the lab setting.
- The Northwestern study is documented in Optica, signaling peer-reviewed validation of the approach.
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