Entanglement distribution quantum networking within deployed telecommunications fibre-optic infrastructure

Abstract

Quantum networks have been shown to connect users with full-mesh topologies without trusted nodes. We present advancements on our scalable polarisation entanglement-based quantum network testbed, which has the ability to perform protocols beyond simple quantum key distribution. Our approach utilises wavelength multiplexing, which is ideal for quantum networks across local metropolitan areas due to the ease of connecting additional users to the network without increasing the resource requirements per user. We show a 10 user fully connected quantum network with metropolitan scale deployed fibre links, demonstrating polarisation stability and the ability to generate secret keys over a period of 10.8 days with a network wide average-effective secret key rate of 3.38 bps.

8 pages, 4 figures, 2 tables, SPIE Photonex 2022 conference proceedings

References in corpus (4)

• Continuous entanglement distribution over a transnational 248 km fibre link
• Analysis of Multipartite Entanglement Distribution using a Central Quantum-Network Node
• Design and Implementation of the Illinois Express Quantum Metropolitan Area Network
• Free-Running Long-Distance Reference-Frame-Independent Quantum Key Distribution

Cited by in corpus (2)

• Designing Noise-Robust Quantum Networks Coexisting in the Classical Fiber Infrastructure
• Polarization compensation methods for quantum communication networks