➀ The Fraunhofer Heinrich-Hertz-Institut (HHI) has initiated the QR.N project to develop interconnected quantum repeaters for secure end-to-end communication networks.

➁ The project is funded by the German Federal Ministry of Education and Research and is set to run from January 2025 to December 2027.

➂ Quantum networks ensure secure data transmission through the principles of quantum mechanics, particularly quantum entanglement, making any tampering or query of quantum states immediately detectable.

The Fraunhofer Heinrich-Hertz-Institut (HHI) is developing networked quantum repeaters for secure communication networks, part of the QR.N project. Quantum networks use quantum mechanics principles to ensure secure communication. The project aims to extend data transmission range and connect quantum computers securely. QR.N is coordinated by Saarland University and involves various research and industry partners.