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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.
Magneettinen monopoli

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.

Mikko Möttönen

Group leader

Dr. Mikko Möttönen

Mikko's Quantum Blog

Research

Research highlight: 

SCIENCE PUBLICATION: Observation of isolated monopoles in a quantum field,
Science 348, 544 (2015).

Magneettinen monopoli

Quantum gases

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

Quantum theory

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

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.

Superconducting quantum electronics

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).

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

Cryostats and measurement equipment in QCD Labs

QCD Labs - Cryostats and measurement equipment

Cryostats and measurement equipment used in QCD Labs.

Open positions

Postdoctoral Researchers and Graduate Students

QCD is looking for Postdoctoral Researchers (fixed term) and Graduate Students in the area of experimental superconducting quantum devices. Send your application to Prof. Mikko Möttönen via email.

Latest publications

Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics

Qubit Measurement by Multichannel Driving

Publishing year: 2019 Physical Review Letters
Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics

Creation of a Dirac monopole-antimonopole pair in a spin-1 Bose-Einstein condensate

Publishing year: 2019 Physical Review A
Department of Applied Physics, Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Aalto University

Broadband Lamb shift in an engineered quantum system

Publishing year: 2019 Nature Physics
Department of Applied Physics, Quantum Computing and Devices, Centre of Excellence in Quantum Technology, QTF

Observation of microwave absorption and emission from incoherent electron tunneling through a normal-metal-insulator-superconductor junction

Publishing year: 2018 Scientific Reports
Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics, Multiscale Statistical and Quantum Physics

Flux-tunable heat sink for quantum electric circuits

Publishing year: 2018 Scientific Reports
Theory of Quantum Matter (TQM), Department of Applied Physics, Quantum Computing and Devices

Amorphous topological superconductivity in a Shiba glass

Publishing year: 2018 Nature Communications
Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics

Accelerated stabilization of coherent photon states

Publishing year: 2018 New Journal of Physics
Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics

Three-dimensional splitting dynamics of giant vortices in Bose-Einstein condensates

Publishing year: 2018 Physical Review A
Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics

Parity-Engineered Light-Matter Interaction

Publishing year: 2018 Physical Review Letters
Centre of Excellence in Quantum Technology, QTF, Quantum Computing and Devices, Department of Applied Physics

Gigahertz Single-Electron Pumping Mediated by Parasitic States

Publishing year: 2018 Nano Letters
More information on our research in the Research database.
Research database
QCD members 2018

QCD members in 2018. From left to right: Roope Kokkoniemi, Mikael Myllymäki, Jesper Ilves, Dibyendu Hazra, Máté Jenei, Arnab Adhikary, Matti Partanen, Iiro Sallinen, Jan Goetz, Severi Rissanen, Vasilii Sevriuk, Mikko Möttönen, Aarne Keränen, Tuomas Ollikainen, Kassius Kohvakka, Márton András Gunyhó, Wei Liu.

Research group members

Jean-Philippe Girard

Department of Applied Physics
Postdoctoral Researcher
Jan Goetz

Jan Goetz

Department of Applied Physics
Postdoctoral Researcher

Johannes Heinsoo

Department of Applied Physics
Postdoctoral Researcher

Joni Ikonen

Department of Applied Physics
Doctoral Candidate

Mate Jenei

Department of Applied Physics
Doctoral Candidate

Roope Kokkoniemi

Department of Applied Physics
Doctoral Candidate

Tianyi Li

Department of Applied Physics
Postdoctoral Researcher

Wei Liu

Department of Applied Physics
Postdoctoral Researcher

Akseli Mäkinen

Department of Applied Physics
Doctoral Candidate
Mikko Möttönen

Mikko Möttönen

Department of Applied Physics
Senior Scientist
Tuomas Ollikainen

Tuomas Ollikainen

Department of Applied Physics
Doctoral Candidate
Vasilii Sevriuk

Vasilii Sevriuk

Department of Applied Physics
Postdoctoral Researcher
Kuan Tan

Kuan Tan

Department of Applied Physics
Academy Research Fellow

Jani Tuorila

Department of Applied Physics
Postdoctoral Researcher

Arto Viitanen

Department of Applied Physics
Doctoral Candidate

Jinli Zhang

Department of Applied Physics
Visiting Doctoral Candidate