SeQUeNCe: A Customizable Discrete-Event Simulator of Quantum Networks

Abstract

Recent advances in quantum information science enabled the development of quantum communication network prototypes and created an opportunity to study full-stack quantum network architectures. This work develops SeQUeNCe, a comprehensive, customizable quantum network simulator. Our simulator consists of five modules: Hardware models, Entanglement Management protocols, Resource Management, Network Management, and Application. This framework is suitable for simulation of quantum network prototypes that capture the breadth of current and future hardware technologies and protocols. We implement a comprehensive suite of network protocols and demonstrate the use of SeQUeNCe by simulating a photonic quantum network with nine routers equipped with quantum memories. The simulation capabilities are illustrated in three use cases. We show the dependence of quantum network throughput on several key hardware parameters and study the impact of classical control message latency. We also investigate quantum memory usage efficiency in routers and demonstrate that redistributing memory according to anticipated load increases network capacity by 69.1% and throughput by 6.8%. We design SeQUeNCe to enable comparisons of alternative quantum network technologies, experiment planning, and validation and to aid with new protocol design. We are releasing SeQUeNCe as an open source tool and aim to generate community interest in extending it.

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• ReQuSim: Faithfully simulating near-term quantum repeaters
• Quantum Internet: Technologies, Protocols, and Research Challenges
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• Optimization of Quantum-Repeater Networks using Stochastic Automatic Differentiation
• Simulation of satellite and optical link dynamics in a quantum repeater constellation
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• Surrogate-guided optimization in quantum networks
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• Feasibility of Logical Bell State Generation in Memory Assisted Quantum Networks
• An Extensible Quantum Network Simulator Built on ns-3: Q2NS Design and Evaluation
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• Simulation of Quantum Entanglement and Quantum Teleportation for Advanced Networks
• Quantum Advantage in Distributed Sensing with Noisy Quantum Networks
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• Gate Teleportation in Noisy Quantum Networks with the SquidASM Simulator
• Teaching quantum communications through a hands-on laboratory
• Simulation of entanglement based quantum networks for performance characterization
• Efficient simulation of noisy entanglement generation
• Integrating Entanglement Purification into All-Photonic Quantum Repeaters