Quantum Communication Using Semiconductor Quantum Dots

Worldwide, enormous efforts are directed toward the development of so-called quantum internet. Turning this long-sought-after dream into reality is a great challenge that will require breakthroughs in communication and computing. To establish global, quantum-secured infrastructure, photonic technologies doubtlessly play major role, by providing interfacing essential resources, for example, flying- stationary qubits or memories. Over last decade, significant progress has been made engineering on-demand light sources based on semiconductor dots, which enable generation close-to-ideal single- entangled-photon states, useful applications information processing. This review focuses implementations of, building blocks for, using quantum-light epitaxial dots. After reviewing main notions introducing devices used single-photon generation, an overview experimental key distribution protocols dot provided. Furthermore, recent networks as well thereof summarized. The article closes with outlook, discussing future perspectives field identifying challenges to be solved.