SK Telecom has joined a major European Union (EU) research initiative aimed at advancing next-generation quantum cryptography technologies, strengthening its position in the emerging global quantum security market.
According to industry sources on June 9, SK Telecom has been selected to participate in a project funded by Horizon Europe, the EU's flagship research and innovation program. The initiative focuses on developing advanced quantum key distribution (QKD) technologies by integrating artificial intelligence (AI) and photonic semiconductor technologies.
The project will be conducted as an international collaboration involving research institutions from South Korea and Europe over the next three years. Participants will work on designing and validating AI-powered quantum cryptography systems for future secure communication networks.
At the center of the project is the development of QPIC-AI-based QKD technology. Quantum key distribution uses the principles of quantum mechanics to generate and exchange encryption keys securely between communication parties. Any attempt to intercept the transmitted information alters the quantum state, making intrusion immediately detectable and providing a highly secure communication environment.
Despite its security advantages, conventional QKD systems have faced commercialization challenges due to their reliance on complex optical equipment and high deployment costs. Existing systems typically require multiple precision optical components, resulting in large-scale infrastructure and operational inefficiencies.
To address these limitations, SK Telecom plans to leverage Photonic Integrated Circuit (PIC) technology, which integrates various optical components into a single semiconductor chip. The approach is expected to significantly reduce system size and complexity, similar to how smartphone camera modules replaced bulky standalone camera systems.
Artificial intelligence will also play a key role. AI algorithms embedded within the system will continuously monitor and compensate for optical signal fluctuations caused by environmental factors such as temperature changes and vibration, improving the stability and reliability of quantum communications.
Industry observers believe the technology could accelerate the commercialization of quantum cryptography by enabling mass production and lowering deployment costs. This could expand the use of quantum-secure communications beyond traditional high-security sectors such as defense and finance into broader industrial applications.
The consortium includes the National Center for Scientific Research Demokritos (NCSRD) of Greece, the Austrian Institute of Technology (AIT), and German semiconductor startup Sinogate UG. SK Telecom will be responsible for developing PIC-based quantum cryptography systems and building testbeds, while the Electronics and Telecommunications Research Institute (ETRI) will support optical chip development.
Beyond technological advancement, the project is also expected to contribute to international standardization efforts. By comparing different national certification frameworks and accumulating joint research outcomes, the consortium aims to help establish future global standards for quantum security technologies.
SK Telecom has been one of South Korea's most active companies in quantum technology research, investing in the field since 2011. The company has expanded its efforts from wired quantum cryptography to wireless and satellite communications and has developed quantum random number generator (QRNG) technologies. More recently, it has strengthened its presence in defense and public-sector markets through security solutions based on post-quantum cryptography (PQC).
