Towards Large-Scale Quantum Networks

TL;DR

This paper introduces quantum networking, surveys current progress, and discusses key computer science challenges for scaling quantum internet technology globally.

Contribution

It provides an accessible overview of quantum networking and highlights specific challenges to enable large-scale quantum internet deployment.

Findings

Survey of current quantum network technologies

Identification of key challenges in scaling quantum networks

Discussion of interdisciplinary efforts needed for quantum internet

Abstract

The vision of a quantum internet is to fundamentally enhance Internet technology by enabling quantum communication between any two points on Earth. While the first realisations of small scale quantum networks are expected in the near future, scaling such networks presents immense challenges to physics, computer science and engineering. Here, we provide a gentle introduction to quantum networking targeted at computer scientists, and survey the state of the art. We proceed to discuss key challenges for computer science in order to make such networks a reality.