At the Q Expo 2026 held in Bilbao, José Luis Crespo, a renowned physicist and science communicator, highlighted the transformative power of quantum computing. The event brings together researchers, companies, and communicators to explore the applications of this revolutionary technology.
Crespo warns about one of the most direct impacts: digital security. Current protection systems, such as RSA encryption, will become obsolete with the advent of quantum computers. "When we have a quantum computer, that entire security system will break. A quantum computer will be able to unlock practically anything," he stated. However, he assured that work is already underway to "create new locks" to prevent this, which will represent "a paradigm shift in how we send secret messages".
“"A quantum computer will be able to unlock practically anything"
The communicator observes a shift in society, particularly among younger generations, who show less fear and more curiosity about physics. Concepts like superposition or entanglement are no longer perceived as science fiction but as something "much more natural." Unlike artificial intelligence, which often operates as a "black box," the principles of quantum physics are understandable, albeit counterintuitive. Crespo emphasizes that physicists are materializing these quantum technologies so that they can "gradually change people's lives".
Beyond quantum computers, Crespo reminds us of the importance of technologies like quantum sensors, which have been present in our daily lives for over 60 years and in which the Basque Country has leading experts. GPS is a clear example, functioning thanks to the atomic clocks in satellites, a type of quantum sensor without which "this technology would not be possible".
Looking to the future, Crespo's greatest wish is for quantum computing to help solve humanity's major challenges. Specifically, he hopes it will improve quantum simulations for a better understanding of materials, with the ultimate goal of "making solar panels cheaper, more efficient," and for quantum computers to help "extract those quantum materials that will aid us in making this green transition" to combat climate change.
