Scaling Network Topologies for Multi-User Entanglement Distribution

• URL: http://arxiv.org/abs/2212.02877v3
• Date: Wed, 27 Sep 2023 07:49:36 GMT
• Title: Scaling Network Topologies for Multi-User Entanglement Distribution
• Authors: Muhammad Daud, Aeysha Khalique
• Abstract summary: Future quantum internet relies on large-scale entanglement distribution. Quantum decoherence is a significant obstacle in large-scale networks, which otherwise perform better with multiple paths between the source and destination. We propose a new topology, connected tree, with a significant amount of redundant edges to support multi-path routing of entangled pairs.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Future quantum internet relies on large-scale entanglement distribution. Quantum decoherence is a significant obstacle in large-scale networks, which otherwise perform better with multiple paths between the source and destination. We propose a new topology, connected tree, with a significant amount of redundant edges to support multi-path routing of entangled pairs. We qualitatively analyse the scalability of quantum networks to maximum user capacity in decoherence for different topologies. Our analysis shows that thin-connected tree networks can accommodate a larger number of user pairs than more evenly distributed lattice topology. We extend our analysis to quantum key distribution and show that the quantum network of a thin tree topology is more robust against decoherence and leads to better key distribution among multiple communicating parties.

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