Mikko Möttönen is leader of the Quantum Computing and Devices group and an associate Professor at Aalto University and VTT Technical Research Centre of Finland. His research interests cover a wide variety of topics in quantum physics and technology. Currently, he is most focused on superconducting electric circuits which he has used to demonstrate the most sensitive bolometer and a quantum-circuit refrigerator. The refrigerator can potentially be used to demonstrate efficient initialization of superconducting qubits, a work that is currently on going.