All questions answered by Prof. Frank Deppe from the Bayerische Akademie der Wissenschaften, Germany.
What do you want to achieve in this project?
QMiCS sets up a quantum microwave local area network cable over a distance of several meters. We then use this architecture to implement quantum communication protocols such as teleportation between two superconducting quantum nodes. Since our approach does not require any of the notoriously loss‑prone frequency conversion techniques, our platform will be highly beneficial for distributed quantum computing. In addition, we take first steps towards the ambitious goal of radar-style quantum sensing with microwaves. Major milestones here are the implementation of microwave single photon detectors and the development of a roadmap towards commercial applications in later phases of the Flagship.
How will European citizens benefit from this project, both from the technology developments it accomplishes as well as the basic science breakthroughs it may achieve?
Already today, classical microwaves make European societies more productive and our lives more comfortable, for example, via computer networks, wireless communication or radar. In the long run, QMiCS’ goal is to improve these technologies by moving them to the quantum regime and to explore possible paths towards their commercial exploitation. In this context, the activities within QMiCS will profit immensely from their close connection to superconducting circuits, which are the most advanced quantum computing platform today. On a shorter timescale, QMiCS boosts commercial developments in cryotechnology and cryogenic microwave electronics and strengthens Europe’s leadership in quantum science and technology.
Why is the Quantum Flagship important and why did you choose to become part of it?
In addition to providing unprecedented funding incentives, the Quantum Flagship enforces a technology transfer from academic quantum science to industry. At the same time, it triggers intense industrial developments in both enabling and actual quantum technologies. It is these exciting dynamics which make the Quantum Flagship so attractive.
How do you see the advancement of quantum technologies in the near future and what would be your ultimate dream in the long run?
Quantum technologies in general, but especially those based on superconducting circuits, are expected to show quantum advantages and first small-scale applications within the upcoming years. When dreaming about a quantum future, one may see fully error-corrected superconducting quantum processors connected via “quantum ethernet” or even “quantum wifi”, as well as commercial quantum-enhanced illumination (radar) applications.