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Full Professor Alex Alvarado, Signal Processing Group, Electrical Engineering

‘Our knowledge can be of great value to Defense — so let’s share it’

November 12, 2025
Alex
Alex Alvarado. Photo: Vincent van den Hoogen

The research area of Professor Alex Alvarado — fundamental theoretical understanding of current and future telecommunications systems — has attracted significant interest, including from the Ministry of Defense.

Communication, Alvarado explains, is already vital — but in the age of quantum computing, it will become absolutely critical.

Quantum machines could, in theory, break today’s encryption methods, yet they also offer entirely new ways to make information exchange virtually unhackable. For Defence — and really for any organization that deals with sensitive data — that’s a game-changer. Alvarado knows this field inside out.

Within the Information and Communication Theory Lab (ICT Lab), his group focuses on the theoretical foundations of modern and future communication systems, operating at the intersection of communication theory, information theory, signal processing, and optical communication.

Research for Defence

Alvarado’s team conducts research for the Ministry of Defence. For one of their projects, they entered the competitive Purple NECtar 2025 Quantum Challenges call — and came out on top, securing the funding.

“For eight months, we worked on so-called quantum error-correcting codes for quantum computers,” Alvarado explains. “These computers rely on physical systems — atoms, ions, or photons — that act as qubits. They’re susceptible to noise and easily disturbed. The most promising approach to addressing this is through quantum error-correcting codes. We developed algorithms to detect and correct such errors and successfully implemented them in hardware.”

Next steps

In early November, his group presented their results at Purple NECtar X – Innovation in Defence, before an audience of four thousand. In that event, they learned that their research will receive a follow-up funding of €250,000 as part of a consortium led by Quix Quantum. “I am very pleased to see that the research we are doing at ϸ is valued by Defense,” says Alvarado.

Collaboration with intelligence services

Alvarado also supervised two master’s students who completed internships at the Joint Sigint Cyber Unit () — a collaboration between the General Intelligence and Security Service of the Netherlands (AIVD) and the Military Intelligence and Security Service (MIVD). For obvious reasons, the details of his students’ work are confidential.

Only Dutch nationals are eligible for a JSCU internship, following an extensive and rigorous security screening. “Internships in industry also come with safety rules,” Alvarado notes, “but this is on a completely different level.”

“It was a valuable collaboration that allowed us to apply our expertise — and for the students, it was a truly unique experience.”

No hesitation

Alvarado never questioned whether to collaborate with Defence. “The more I work with them, the clearer it becomes how important it is that they have access to our knowledge — that they understand what universities can contribute to our country.”

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Brigit Span
(Corporate Storyteller)