Building a Practical Quantum Network: How to Leverage Quantum Entanglement as a Resource : Abstract

Quantum Networking is an increasingly relevant research field aimed at facilitating a number of current and future applications, such as long-distance quantum key distribution (QKD), blind quantum computing and distributed quantum sensing [1] . Many recent publications present visions for a “quantum internet” capable of enabling such applications on a global scale. These works often focus on fundamental architectures, protocol stacks, and long-term technology roadmaps, generally assuming the availability of quantum repeaters and memories that are not yet ready for widespread deployment [2] . In contrast, near-term progress depends on identifying architectures that can be built with components available today, and addressing challenges in integrating them into existing telecom infrastructure. Recent works have demonstrated quantum entanglement distribution via networks and its use in illustrative quantum applications under realistic conditions [3 , 4] .