Quantum repeaters: From quantum networks to the quantum internet
This work reviews the conceptual frameworks and architectures for quantum repeaters, as well as the experimental progress towards their realization, and discusses the various near-term proposals to overcome the limits to the communication rates set by point-to-point quantum communication.
Abstract
Quantum technology is now at a point where practical work can begin on creating the quantum internet. However, numerous challenges must be overcome before this vision becomes a reality. A global-scale quantum internet requires the development of the quantum repeater, a device that stores and manipulates qubits while interacting with or emitting entangled photons. This review examines different approaches to quantum repeaters and networks, covering their conceptual frameworks, architectures, and current progress in experimental implementation.