Quantum random number generators (QRNGs) are widely recognised as the most effective solution for generating true random numbers, essential in cryptography and other applications requiring the highest standards of randomness. Several quantum phenomena have been explored for QRNGs, such as:…


Quantum Key Distribution (QKD) is transforming data encryption, making it virtually unbreakable by leveraging the laws of quantum mechanics. Unlike classical cryptography, where cryptographic keys can be intercepted and copied by adversaries, QKD protocols enable the distribution of secret truly…

In 2015, the United Nations General Assembly declared 11 February as the International Day of Women and Girls in Science. At HellasQCI, we honor the brilliant women shaping the future of science and technology. On the International Day for…

The European Commission and the European Space Agency (ESA) have signed an agreement to advance the implementation of the European Quantum Communication Infrastructure (EuroQCI). This initiative aims to establish a quantum-safe communication network across the EU and its territories by…

In a Netweek magazine article (January 2025) titled “Priority on Innovation and Security at GRNET”, Dimitris Mitropoulos, Head of the Reliability Engineering Directorate (GRE) at GRNET and Assistant Professor at the National and Kapodistrian University of Athens (NKUA), underscores the…

The National Quantum Communication Infrastructures (NatQCIs) projects of Greece (HellasQCI), Spain (EuroQCI Spain), Austria (QCI-CAT) respectively, invite you to a captivating event that will take place in Athens the historical capital of Europe between 28-30 April 2025. See the full Invitation HERE

Event Overview On 5th December 2024, Dr Homer Papadopoulos, Functional Researcher in NCSR Demokritos and Dissemination Coordinator of HellasQCI participated in the PRISM Quantum Week, at the University of Malta, Valletta Campus, under the auspices of PRISM EuroQCI to explore…

LEO satellites are revolutionizing secure communication through Quantum Key Distribution (QKD), a method that leverages the principles of quantum mechanics to ensure unbreakable encryption. A recent study* “Satellite-to-Ground QKD in Urban Environment: A Comparative Analysis of Small-Sized Optical Ground Stations”…

The latest progress related to the HellasQCI project was presented by Dr. Manolis Xilouris, Νational Observatory of Athens and a key contributor in the space-segment development for the HellasQCI project, on October 24, 2024 at ICSO2024, one of the largest…

Dr. Ilias Papastamatiou, Senior Project Manager at GRNET and Coordinator of HellasQCI, was honoured to be invited by DTU (Technical University of Denmark) to present at the National QCI Workshop of Denmark: “Securing the Future: Quantum Key Distribution for Enterprises…