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Department of Applied Physics

Quantum Computing and Devices (QCD)

The Quantum Computing and Devices (QCD) group was formally established in October 2007, and since 2012, the premises of our research group has been referred to as QCD Labs. We keep an open mind and explore the most interesting and promising pathways to reach maximal quality and productivity in our research and innovations.
An artistic illustration shows how microscopic bolometers (depicted on the right) can be used to sense very weak radiation emitt
An artistic illustration shows how microscopic bolometers (depicted on the right) can be used to sense very weak radiation emitted from qubits (depicted on the left). Photo: Aleksandr Käkinen/Aalto University

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.

(Aalto news)

Researchers aim to correct quantum errors at super-cold temperatures instead of room temperature

Professor Mikko Möttönen has received a three-year grant from the Jane and Aatos Erkko Foundation to correct quantum errors. His research group is developing a solution that will allow microwave pulses to be kept at a temperature of millikelvin, or -273 degrees.

(Aalto news)

Open calls

We are now hiring for the new 1.5-M€ project Autonomous Quantum Processor! If you are an exceptionally successful student (GPA >4.5/5.0) or have a PhD on cQED, send your cover letter and CV (including your GPAs) to Mikko by email at mikko.mottonen@aalto.fi. We will hire as soon as we can find amazing candidates.

Professor Mikko Möttönen has received a three-year grant from the Jane and Aatos Erkko Foundation to correct quantum errors. His research group is developing a solution that will allow microwave pulses to be kept at a temperature of millikelvin, or -273 degrees.

(Aalto news)

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 . 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 ).

Join QCD Labs: Postdoc & Research Fellow Roles in Superconducting Qubits

Two Postdocs in superconducting qubits and millikelvin electronics

Did you recently get your PhD in circuit quantum electrodynamics (cQED) and are now looking into taking the full potential of your skills into use for making new scientific discoveries?

We are now looking for two Postdoctoral Researchers to join our development of improved superconduting qubits and millikelvin electronics which will be integrated to form an autonomous superconducting quantum processor at Aalto University’s Quantum Coputing and Devices (QCD) group at the Department of Applied Physics. In this position you have a chance to make history by demonstrating some of the first experiments of the future quantum-computer technology that is orders of magnitude more efficient than existing quantum processors. Join us in shaping the future! 

Please go to find more information about the application process. 

Senior research staff member in superconducting qubits with millikelvin feedback

Did you have a stellar postdoc in circuit quantum electrodynamics (cQED) and are now looking into a step up in your career while breaking records in science?

We are now looking for a senior researcher for a Research Fellow position to co-lead our development of an autonomous superconducting quantum processor at Aalto University’s Quantum Coputing and Devices (QCD) group at the Department of Applied Physics. In this position you have a chance to make history by demonstrating some of the first experiments of the future quantum-computer technology that is orders of magnitude more efficient than existing quantum processors. Join us in shaping the future!

Please go to find more information about the application process. 

For more information about the role, please contact Prof. Mikko Möttönen +358 505 940 950 on 3rd July 2025 at 14:00 (EET).  For questions related to the application process, please contact HR Advisor Minni Forss minni.forss(at)aalto.fi (out of office on 12.7.-3.8.2025).

We will go through applications, and we may invite suitable candidates to interview already during the application period. You should hear from us at the latest on the second week of August. We aim to have a transparent and equal recruitment process, so feel free to ask us for feedback.

Mikko Möttönen

Group leader

Dr. Mikko Möttönen

Mikko's Aalto page

Research

Research highlight: 

NATURE PUBLICATION: ,
Nature 586, 47–51 (2020).

SCIENCE PUBLICATION: ,
Science 348, 544 (2015).

Bolometers used for qubit readout

Ultrasensitive bolometers

We develop fast and sensitive thermal detectors for circuit quantum electrodynamics applications.

Department of Applied Physics
Artistic depiction of a bright light in space / made by Ray Scipak

Quantum gases

Bose-Einstein condensation (BEC) is a manifestation of macroscopic occupation of a single quantum state.

Department of Applied Physics
Six superconducting qubits sample

Superconducting quantum electronics

We develop components and methodology in the rapidly growing field of quantum computing, especially in the framework of circuit quantum electrodynamics (cQED).

Department of Applied Physics
Quantum theory

Quantum theory

QCD's activities cover theoretical and computational problems in quantum information science as well as experimental realizations of quantum devices.

Department of Applied Physics
Silicon quantum electronics

Silicon quantum electronics

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.

Department of Applied Physics

QCD Media Room

Media hits and research videos by the QCD group

QCD Cinema

Research presentations and media interviews on the research by the QCD group

QCD Media

QCD research in the media

Facilities

The samples are fabricated in .

Computational studies are performed utilizing the resources of  and .

Micro and nanofabrication facilities

OtaNano offers facilities to develop innovative enabling technologies and apply them to practical micro- and nano-systems

Services
Lab and offices spaces of QCD Labs at the Micronova facility.

QCD Labs - Cryostats and measurement equipment

Cryostats and measurement equipment used in QCD Labs.

Department of Applied Physics

Latest publications

Aarne Keränen, Qi Ming Chen, András Gunyhó, Priyank Singh, Jian Ma, Visa Vesterinen, Joonas Govenius, Mikko Möttönen 2025 Nature Communications

Priyank Singh, András Gunyhó, Heikki Suominen, Giacomo Catto, Florian Blanchet, Qi Ming Chen, Arman Alizadeh, Aarne Keränen, Jian Ma, Timm Mörstedt, Wei Liu, Mikko Möttönen 2025 Journal of Applied Physics

Peter A. Spring, Luka Milanovic, Yoshiki Sunada, Shiyu Wang, Arjan F. Van Loo, Shuhei Tamate, Yasunobu Nakamura 2025 PRX Quantum

V. Vadimov, M. Xu, J. T. Stockburger, J. Ankerhold, M. Möttönen 2025 Physical Review Research

Toni Annala, Hermanni Rajamäki, Mikko Möttönen 2024 Communications in Mathematical Physics

Toni Annala, Tommi Mikkonen, Mikko Möttönen 2024 Physical Review Research

Andrey A. Generalov, Klaara L. Viisanen, Jorden Senior, Bernardo R. Ferreira, Jian Ma, Mikko Möttönen, Mika Prunnila, Heorhii Bohuslavskyi 2024 Applied Physics Letters

Andras Gunyho, Suman Kundu, Jian Ma, Wei Liu, Sakari Niemelä, Giacomo Catto, Vasilii Vadimov, Visa Vesterinen, Priyank Singh, Qiming Chen, Mikko Möttönen 2024 Nature Electronics

Eric Hyyppä 2024

Timm Fabian Mörstedt 2024
More information on our research in the Aalto research portal.
QCD group picture 2024
QCD group members 2024

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
 

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