Ultrasensitive bolometers
We develop fast and sensitive thermal detectors for circuit quantum electrodynamics applications.
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.
Unimon - A new qubit to boost quantum computers for useful applications
A group of scientists from Aalto University, IQM Quantum Computers, and VTT Technical Research Centre of Finland have discovered a new superconducting qubit, the unimon, to increase the accuracy of quantum computations.
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).
We are looking for postdocs and PhD students for experiments on superconducting quantum electronic circuits
Requirements for postdocs:
Successful experience on measurements or fabrication of high-coherence superconducting resonators or qubits
Requirements for Ph.D students:
Outstanding performance in BSc and MSc studies on an applicable field (GPA 4.5/5.0 or greater)
If you fulfill the requirements, please apply by sending your CV, list of publications, and a short cover letter expressing your interests and greatest merits to Mikko ([email protected])
Research
Research highlight:
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).
Quantum gases
Bose-Einstein condensation (BEC) is a manifestation of macroscopic occupation of a single quantum state.
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).
Quantum theory
QCD's activities cover theoretical and computational problems in quantum information science as well as experimental realizations of quantum devices.
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.
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 Micronova cleanroom facilities.
Computational studies are performed utilizing the resources of Aalto University and CSC.
Micro and nanofabrication facilities
OtaNano offers facilities to develop innovative enabling technologies and apply them to practical micro- and nano-systems
QCD Labs - Cryostats and measurement equipment
Cryostats and measurement equipment used in QCD Labs.
Latest publications
Observation of an Alice ring in a Bose–Einstein condensate
Alina Blinova, Roberto Zamora-Zamora, Tuomas Ollikainen, Markus Kivioja, Mikko Möttönen, David S. Hall
2023
Nature Communications
Propagating quantum microwaves : towards applications in communication and sensing
Mateo Casariego, Emmanuel Zambrini Cruzeiro, Stefano Gherardini, Tasio Gonzalez-Raya, Rui André, Gonçalo Frazão, Giacomo Catto, Mikko Möttönen, Debopam Datta, Klaara Viisanen, Joonas Govenius, Mika Prunnila, Kimmo Tuominen, Maximilian Reichert, Michael Renger, Kirill G. Fedorov, Frank Deppe, Harriet van der Vliet, A. J. Matthews, Yolanda Fernández, R. Assouly, R. Dassonneville, B. Huard, Mikel Sanz, Yasser Omar
2023
Quantum Science and Technology
Quantum walks on random lattices : Diffusion, localization, and the absence of parametric quantum speedup
Rostislav Duda, Moein N. Ivaki, Isac Sahlberg, Kim Pöyhönen, Teemu Ojanen
2023
PHYSICAL REVIEW RESEARCH
Cryogenic sensor enabling broad-band and traceable power measurements
J. P. Girard, R. E. Lake, W. Liu, R. Kokkoniemi, E. Visakorpi, J. Govenius, M. Möttönen
2023
Review of Scientific Instruments
Evolution and decay of an Alice ring in a spinor Bose-Einstein condensate
Markus Kivioja, Roberto Zamora-Zamora, Alina Blinova, Sanna Mönkölä, Tuomo Rossi, Mikko Möttönen
2023
PHYSICAL REVIEW RESEARCH
Long-Distance Transmon Coupler with cz -Gate Fidelity above 99.8 %
Fabian Marxer, Antti Vepsäläinen, Shan W. Jolin, Jani Tuorila, Alessandro Landra, Caspar Ockeloen-Korppi, Wei Liu, Olli Ahonen, Adrian Auer, Lucien Belzane, Ville Bergholm, Chun Fai Chan, Kok Wai Chan, Tuukka Hiltunen, Juho Hotari, Eric Hyyppä, Joni Ikonen, David Janzso, Miikka Koistinen, Janne Kotilahti, Tianyi Li, Jyrgen Luus, Miha Papic, Matti Partanen, Jukka Räbinä, Jari Rosti, Mykhailo Savytskyi, Marko Seppälä, Vasilii Sevriuk, Eelis Takala, Brian Tarasinski, Manish J. Thapa, Francesca Tosto, Natalia Vorobeva, Liuqi Yu, Kuan Yen Tan, Juha Hassel, Mikko Möttönen, Johannes Heinsoo
2023
PRX Quantum
Single-domain Bose condensate magnetometer achieves energy resolution per bandwidth below ħ
Silvana Palacios Alvarez, Pau Gomez, Simon Coop, Roberto Zamora-Zamora, Chiara Mazzinghi, Morgan W. Mitchell
2022
Proceedings of the National Academy of Sciences of the United States of America
Charge ambiguity and splitting of monopoles
Toni Annala, Mikko Möttönen
2022
PHYSICAL REVIEW RESEARCH
Cohomology of the moduli stack of algebraic vector bundles
Toni Annala, Ryomei Iwasa
2022
ADVANCES IN MATHEMATICS
Topologically protected vortex knots and links
Toni Annala, Roberto Zamora-Zamora, Mikko Möttönen
2022
Communications Physics
QCD members in the group photo 2023 (from the left): Manuela Norrgrann, Heikki Suominen, Jaime Pardo, Jonatan Albanese, Samuel Klaver, Arto Viitanen, Timm Mörstedt, Mikko Tuokkola, Eemeli Forsbom, Hannaneh Zarrabi, Wallace Santos Teixeira, Jian Ma, Fredrik Ihamuotila, Iago da Silva Rossetto, Andras Gunyho, Aarne Keränen, Daniel de Carvalho
Aashish Sah, Florian Blanchet, Arman Alizadeh, Rostislav Duda, Yoshiki Sunada, Mikko Möttönen, Vasilii Vadimov, Priyank Singh, Giacomo Catto, Qiming Chen
Research group members
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