Koen’s current scientific research focuses on quantum computing and more specifically on the definition and implementation of a scalable quantum micro- and system architecture. This involves specifying what the micro-architectural support is for the classical control of the quantum instructions and how the quantum accelerator is connected and integrated in a larger system design where classical logic is combined with quantum logic. He has successfully demonstrated the first fully programmable qubit processor where the control logic is fully implemented by the proposed micro-architecture.