Accelerating the Future of Europe’s Quantum Communication Infrastructure
From April 28 to 30, the QCI Days 2025 conference took place in Athens, consolidating itself as the central annual meeting for the European Quantum Communication Infrastructure (EuroQCI) initiative. Held under the auspices of the Hellenic Ministry of Digital Governance, and co-organised by GRNET, AIT Austrian Institute of Technology, and the Universidad Politécnica de Madrid, the event gathered key national coordinators, researchers, technology providers, and policymakers from across the continent.
The QUARTER consortium had a prominent and coordinated presence throughout the event, showcasing the maturity of its technologies and the strength of its multi-national collaboration.
As project coordinator, LuxQuanta took the stage both as exhibitor and speaker. CTO Sebastián Etcheverry and Director of Business Development Víctor Gomis presented the company’s latest advancements in continuous-variable QKD, highlighting the launch of the second generation of NOVA LQ®, a system designed to enable scalable, high-performance quantum-secure communications across existing optical networks.
Quside, another key member of QUARTER, contributed to the discussions by emphasizing the critical role of high-quality entropy sources in building reliable and secure infrastructures that can withstand future quantum threats. Their hardware-based entropy solutions are foundational for secure key generation and cryptographic robustness in both classical and quantum contexts.
As co-organiser, AIT played a strategic role in aligning research and industry interests, ensuring that innovation efforts across Europe remain interoperable, standard-driven, and industry-ready. Additional QUARTER members, including fragmentiX and Thales, actively engaged in expert panels, technology demonstrations, and bilateral meetings with stakeholders, further reinforcing the consortium’s influence in shaping the EuroQCI landscape.
Throughout the three days, the event highlighted the importance of QKD deployment, infrastructure interoperability, and industrial certification pathways, all areas where QUARTER is making measurable progress. The participation of multiple consortium partners demonstrated not only the technical maturity of their solutions, but also their shared vision of securing Europe’s digital future through collaboration, innovation, and sovereignty.
As Europe continues to scale its quantum infrastructure, QUARTER remains at the forefront, ensuring that quantum communication technologies are reliable, deployable, and ready to protect the most sensitive data flows across the continent.

