Arqon: A suite of control applications enabling a reliable quantum network

TL;DR

Arqon is a control suite that ensures reliable quantum network services by meeting defined reliability requirements through analytic and numerical evaluations, with scalable algorithms demonstrated.

Contribution

The paper introduces Arqon, a suite of control applications that enable reliable quantum network service delivery with scalable admission control and scheduling algorithms.

Findings

Arqon satisfies all reliability requirements in static network topologies.

The Python implementation demonstrates scalable admission control and scheduling.

Analytic and numerical evaluations confirm reliability and scalability.

Abstract

A quantum network's purpose is to enable users to execute applications on end nodes. This requires the network to provide the service of creating entangled links between those nodes. Users of mature networks, such as the internet or the telephone network expect accepted service demands to be met reliably. We first define reliability requirements that extend classical computer network concepts to quantum network service delivery. We then introduce Arqon, a suite of control applications designed to deliver reliable service in centrally controlled quantum networks. We demonstrate through both analytic and numerical evaluation that Arqon satisfies all reliability requirements for accepted demands. These evaluations consider static network topologies. We provide a complete Python implementation and perform complexity analysis showing that admission control scales as $O(k^3)$ in the number of incoming demands $k$ and schedule computation scales as ${O(N^3)}$ in the number of accepted demands to schedule $N$.