Cisco Demonstrates Metropolitan Quantum Network Architecture Breakthrough
Summary
Key Takeaways
Cisco and partners demonstrated metropolitan entangled quantum network over 17.6km standard telecom fiber between Manhattan and Brooklyn. Achieved over 5,400 entangled pairs per hour with >99% polarization fidelity, performance improved by 3-4 orders of magnitude over lab attempts.
Core technology uses software-hardware separation architecture. Cisco's control software enables picosecond synchronization via White Rabbit protocol, automating entanglement distribution across three geographic nodes. Employs hub-spoke design with core cryogenic equipment at hub and room-temperature hardware at edges.
Why It Matters
Cisco validates engineering feasibility of quantum networks on existing infrastructure, providing technical backing for its quantum internet strategy and potentially establishing first-mover advantage in quantum-classical network convergence.
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