A Design for an Early Quantum Network

TL;DR

This paper proposes a design for early quantum networks compatible with existing quantum repeater technologies, focusing on maximizing application support under resource constraints through simulation-based feasibility analysis.

Contribution

It introduces a comprehensive quantum network design with specific identifiers and request processes, and evaluates its performance considering noise and resource limitations.

Findings

Design supports diverse quantum applications effectively.

Simulation shows robustness under noise and imperfect parameters.

Resource allocation strategies improve request success rates.

Abstract

With the rapid advancement of quantum information technology, quantum networks have become essential for supporting diverse applications, which often have stringent demands for key metrics such as fidelity and request completion time. In this work, we propose a design for early-stage quantum networks that is compatible with the three existing quantum repeater technologies. The design aims to maximize the ability of the network to accommodate the diverse needs of quantum applications, even under conditions of limited quantum resources and suboptimal network performance. We have also described the required identifiers in the quantum network and the specific process for implementing quantum requests. To assess the feasibility of our design, we conduct simulations based on discrete-event modeling of quantum networks. The simulations consider various types of noise and imperfect parameters that might exist in early-stage networks. We analyze the impact of these parameters on the fidelity of the generated entangled states and the request completion time. Furthermore, we investigated additional decisions that the central controller can make beyond path selection, such as the choice of cutoff time and the allocation of network resources to requests.