Monitoring Report 1 - Quantum Communication

Due to advances in quantum computing, "quantum-safe" encryption methods will be needed in the future to ensure secure communication. Quantum communication could play a crucial role in this. This report gives an overview of the three generations of quantum communication technologies: quantum key distribution following the prepare & measure principle, entanglement-based quantum key distribution and quantum repeaters. The report analyses the developments in research, industrialization, test infrastructure and market, and shows increasing publication and patenting activities. In addition, funding programs in Germany and Europe as well as international strategies for quantum communication are examined. Finally, challenges and measures to secure technological sovereignty in quantum communication are discussed.