Quantum Communication Systems

The Quantum Communication Systems (QCSys) research group is dedicated to advancing secure and high-performance communication technologies for the quantum era. Their work addresses one of the most pressing challenges in modern information society: ensuring trust, privacy, and resilience in global communication networks.

Activities

The group explores and develops cutting-edge solutions in quantum communication, focusing on:

• Quantum Key Distribution (QKD): Enabling provably secure encryption based on the laws of quantum physics.
• Coexistence of QKD and Classical Data Traffic: Designing architectures where quantum and classical signals share the same infrastructure without compromising performance.
• Entanglement Distribution and Sources: Creating and managing entangled photon pairs for advanced quantum networking and future quantum internet applications.
• Advanced Measurement Techniques: Innovating high-precision methods for characterizing and optimizing quantum communication systems.

Why it matters

As digital communication underpins every aspect of modern life – from banking and healthcare to national security – the need for unbreakable security is critical. Classical cryptographic methods are increasingly vulnerable to advances in computing, including quantum computers. Quantum communication offers a future-proof solution, ensuring confidentiality and integrity even against the most powerful adversaries.

Beyond security, quantum networks will enable distributed quantum computing, secure cloud services, and fundamental scientific breakthroughs. Their research contributes to shaping this second quantum revolution.

Their vision? Making quantum communication ever more accessible for serving practical needs in society.