Tools for Reducing Service Time in Near-Term Quantum Networks

2026-08-21

AI Summary

为减少量子网络中因固定间隔导致的空闲时间，提出一种新方法通过优化生成尝试间的间隔来缩短服务时间，适用于共享硬件的量子网络架构。

Abstract

Architectures have been proposed to control entanglement generation in multi-user quantum networks. To allow time for local operations and classical communication at end nodes, these architectures insert fixed separations between consecutive batches of entanglement generation attempts. This reduces network utilization when attempts fail, leaving the network idle during the scheduled separation. To address this limitation, we propose a novel method to reclaim this idle time by shortening the scheduled separation between attempts while respecting hardware constraints. The method uses an analytical execution model to optimize the separation and reduce the total network service time of an application. Evaluations within the Arqon architecture show network service time reductions of up to 42 minutes (7.6%) for single applications and 16-29 minutes (26-30%) per application when co-scheduled. The approach applies broadly to quantum network architectures that share hardware between entanglement generation and local operations, and the method can be used online by network schedulers.

Problem

• quantum networks
• entanglement generation
• network utilization
• idle time

Innovation

• entanglement generation
• network service time
• analytical execution model
• quantum network architectures