The space and defense panel at the Quside Showcase Day 2024 brought together leading industry experts to explore how quantum technologies are transforming these sectors. Moderated by Domenico Tulli, CTO of Quside, the discussion focused on key topics such as secure communications, critical infrastructure, and the development of technologies for the space environment.
Antonio Abad, CTO of Hispasat, highlighted how satellites will be essential to overcome current limitations in the range of quantum communications:
Satellites will play a vital role in quantum communications, especially in overcoming distances greater than 100 km, where commercial fibers are ineffective.
Satellites are emerging as crucial technology for bridging long distances and ensuring secure communication channels. As Antonio Abad pointed out, overcoming the limitations of traditional fiber optic infrastructure is critical to enabling quantum communications that can cover vast areas, especially in space applications.


Sandra Mingot, Head of EU and defense programs at Sener, explained how her team is working on an engineering model to test the feasibility of quantum key distribution (QKD) from low Earth orbit:
We are developing a space-compatible model to demonstrate the concept of QKD from low Earth orbit, as part of a fully Spanish consortium.
Sandra’s insights emphasize the importance of adapting QKD to the unique challenges posed by space. By demonstrating this technology in low Earth orbit, her team is pushing the boundaries of what is possible in securing communications in space and furthering the potential of quantum technologies for defense and space exploration.
Kevin Chalker, CEO of Qrypt, emphasized how quantum cryptography is already impacting national security:
At the CIA, we used secure quantum encryption to operate in hostile environments. Today, our goal is to democratize that level of security for everyone.
Kevin’s experience underscores the immediate relevance of quantum cryptography for national defense. The CIA’s use of secure quantum encryption reflects the pressing need for quantum security in modern defense systems, and his company’s efforts to democratize this technology point to a future where high-level security is accessible to all sectors.

The panel identified several key areas that will define the development and implementation of quantum technologies in space and defense:
Technological transition: Adapting quantum technologies to the space environment involves overcoming challenges such as radiation and extreme conditions. As Sandra Mingot explained, developing models for QKD in space requires innovation in both design and materials, addressing the unique environmental challenges that space missions face.
Scalable and cost-effective infrastructure: The long-term viability of these technologies depends on their ability to be produced at scale and with competitive costs. Antonio Abad pointed out that overcoming the current limitations in quantum communications will require an infrastructure that is not only scalable but also cost-effective, ensuring that the benefits of quantum technologies can be realized globally.
European technological sovereignty: Projects like Iris² and EuroQCI highlight Europe’s commitment to developing quantum technologies for space and defense applications. This sovereignty ensures that Europe remains at the forefront of this critical technological advancement, as emphasized by the panelists’ insights into the importance of these initiatives for the future of space and defense.

The Quside Showcase Day 2024 panel underscored how quantum technologies are transforming communications and security in space and defense. Projects like Iris² and EuroQCI strengthen Europe’s leadership in this technological revolution, while satellites emerge as key components to extend quantum connectivity over long distances.
Kevin Chalker’s vision of democratizing quantum encryption aligns with the global movement toward secure communication, making clear the broad-reaching potential of these technologies. While the road ahead presents challenges such as scalability and adaptation to the space environment, Sandra Mingot’s work on QKD and Antonio Abad’s focus on satellite infrastructure shows the promise of overcoming these obstacles. Innovations like QKD, PQC, and QRNGs offer a secure and connected future for space and defense applications. As seen in these projects, collaboration between governments, industry, and academia will be essential to turning this potential into reality.