Ultrasensitive bolometers
We develop fast and sensitive thermal detectors for circuit quantum electrodynamics applications.
New method of measuring qubits promises ease of scalability in a microscopic package
Aalto University researchers are the first in the world to measure qubits with ultrasensitive thermal detectors—thus evading the Heisenberg uncertainty principle
We have a major effort on experimental quantum physics with superconducting circuits, but we also carry out computational and theoretical work down to fundamental quantum mechanics. Currently, we focus on control and readout techniques for superconducting qubits and on the implementation of on-demand dissipation in quantum circuits to study the related dynamics of open quantum systems.
We also develop ultrasensitive microwave detectors and on-chip components for controlling microwave photons, single-electron pumps based on silicon quantum dots, and quantum knots and monopoles in Bose-Einstein condensates. We are also proud to have given birth to a leading European quantum-computer company IQM. Recently, we jointly developed with IQM an open-source software, KQCircuits, to design superconducting quantum processors, making our tools available for the entire quantum community (more information here).
NATURE PUBLICATION: Bolometer operating at the threshold for circuit quantum electrodynamics,
Nature 586, 47–51 (2020).
SCIENCE PUBLICATION: Observation of isolated monopoles in a quantum field,
Science 348, 544 (2015).
We develop fast and sensitive thermal detectors for circuit quantum electrodynamics applications.
Bose-Einstein condensation (BEC) is a manifestation of macroscopic occupation of a single quantum state.
We develop components and methodology in the rapidly growing field of quantum computing, especially in the framework of circuit quantum electrodynamics (cQED).
QCD's activities cover theoretical and computational problems in quantum information science as well as experimental realizations of quantum devices.
Our rigorous long term goal is to find a high-yield (100 pA) and metrologically accurate (10 ppb uncertainty) current source which could be used to redefine the unit of electric current, the ampere.
Media hits and research videos by the QCD group
Research presentations and media interviews on the research by the QCD group
QCD research in the media
The samples are fabricated in Micronova cleanroom facilities.
Computational studies are performed utilizing the resources of Aalto University and CSC.
OtaNano offers facilities to develop innovative enabling technologies and apply them to practical micro- and nano-systems
Cryostats and measurement equipment used in QCD Labs.
QCD members in the group photo 2024 (from the left):
Back: Jonatan Albanese, Tuomas Uusnäkki, Yusuf Sürmeli, Timm Mörstedt, Matias Perkiö, Aron Samulin
Middle: Aku Hertell, Arman Alizadeh, Aarne Keränen, Heikki Suominen, Miika Rasola, Mikko Tuokkola, Heidi Kivijärvi
Front: Suman Kundu, Jian Ma, Qiming Chen, Priyank Singh, Yoshiki Sunada, Aashish Sah, Mikko Möttönen