Base Styles/Icons/Some/Linkedin/Default Created with Sketch. Base Styles/Icons/Close/Default Created with Sketch. Base Styles/Icons/lock/open Created with Sketch.

Quantum Dynamics (QD)

The research interests of the QD group are quantum coherent dynamics and quantum many-body phenomena in designed nanosystems. We are active in the fields of ultracold quantum gases and nanoplasmonics, and we combine theory and experiment.
Plasmon BEC

Research

The goal of the Quantum Dynamics group is to find novel quantum phenomena that may occur in future designed nanosystems. We target generic concepts, but two areas where the possibilities of designing and tailoring the systems are particularly fascinating are our focus: ultracold quantum gases and plasmonic lattice systems. In the latter we combine experiment and theory, while in the former our research is theoretical. The phenomena we have been interested in include superfluidity, superconductivity, topological phases of matter, Bose-Einstein condensation, lasing, and strong coupling between light and matter in the nanoscale.

We have found that exotic forms of superfluidity, such as the co-existence of superconductivity and magnetization, are especially stable in lattice geometries. Also, we have discovered that superfluidity in a flat energy band is connected to the quantum metric and has a lower bound given by a topological invariant, the Chern number.

The Quantum Dynamics group has experimentally observed strong coupling between dye molecules and plasmonic light modes. Arrays of metal nanoparticles offer us great opportunities for designing the band structure and the modes of light. We have observed lasing in a dark mode of such plasmonic lattices.

We fabricate plasmonic lattices using nanolithography and measure their optical properties in our lab, which includes a femtosecond laser setup for studies of quantum dynamics.

In the theory work, we use both analytical approaches and advanced numerical methods, such as dynamical mean field theory.

You can find below our Latest Publications (for more publications, from present to 2008, click "Research database" below the publication list and then "Research Outputs"), Media coverage which includes public-accessible descriptions of our work, and Alumni showing where people from our group have proceeded.

Latest publications

Department of Applied Physics, Quantum Dynamics

Quantum metric and effective mass of a two-body bound state in a flat band

Publishing year: 2018 Physical Review B
Quantum Dynamics, Department of Applied Physics

Induced p -Wave Pairing in Bose-Fermi Mixtures

Publishing year: 2018 Physical Review Letters
Department of Applied Physics, Quantum Dynamics

Spin-imbalanced Fermi superfluidity in a Hubbard model on a Lieb lattice

Publishing year: 2018 Physical Review B
Department of Applied Physics, Quantum Dynamics

Superfluid weight and berezinskii-kosterlitz-Thouless temperature of spin-imbalanced and spin-orbit-coupled Fulde-Ferrell phases in lattice systems

Publishing year: 2018 New Journal of Physics
Centre of Excellence in Computational Nanoscience, COMP, Quantum Dynamics, Department of Applied Physics

A synthetic biological quantum optical system

Publishing year: 2018 Nanoscale
Department of Applied Physics, Quantum Dynamics, Centre of Excellence in Computational Nanoscience, COMP

Bose–Einstein condensation in a plasmonic lattice

Publishing year: 2018 Nature Physics
Quantum Dynamics, Department of Applied Physics

One-Dimensional Plasmonic Nanoparticle Chain Lasers

Publishing year: 2018 ACS Photonics
Department of Applied Physics, Centre of Excellence in Computational Nanoscience, COMP, Quantum Dynamics

Fast trimers in a one-dimensional extended Fermi-Hubbard model

Publishing year: 2018 Physical Review A
Quantum Dynamics, Department of Applied Physics, Centre of Excellence in Computational Nanoscience, COMP

Ultrafast Pulse Generation in an Organic Nanoparticle-Array Laser

Publishing year: 2018 Nano Letters
Quantum Dynamics, Department of Applied Physics

The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials

Publishing year: 2018 Reports on Progress in Physics
More information on our research in the Research database.
Research database

Media coverage

Quantum dynamics group
QD group

Research group members

Alessandro Cotrufo

Alessandro Cotrufo

Department of Applied Physics
Doctoral Candidate
Konstantinos Daskalakis

Konstantinos Daskalakis

Department of Applied Physics
Postdoctoral Researcher
Rebecca Heilmann

Rebecca Heilmann

Department of Applied Physics
Doctoral Candidate

Kukka-Emilia Huhtinen

Department of Applied Physics
Doctoral Candidate

Aleksi Julku

Department of Applied Physics
Doctoral Candidate
Jami Kinnunen

Jami Kinnunen

Department of Applied Physics
University Lecturer

Pramod Kumar

Department of Applied Physics
Postdoctoral Researcher
Jani-Petri Martikainen

Jani-Petri Martikainen

Department of Applied Physics
Senior University Lecturer
Antti Moilanen

Antti Moilanen

Department of Applied Physics
Doctoral Candidate
Marek Necada

Marek Necada

Department of Applied Physics
Doctoral Candidate
Sebastiano Peotta

Sebastiano Peotta

Department of Applied Physics
Postdoctoral Researcher
Akbar Syed

Akbar Syed

Department of Applied Physics
Postdoctoral Researcher
Jani Taskinen

Jani Taskinen

Department of Applied Physics
Research Assistant
Päivi Törmä

Päivi Törmä

Department of Applied Physics
Professor

Matthias Vandichel

Department of Applied Physics
Postdoctoral Researcher
Aaro Väkeväinen

Aaro Väkeväinen

Department of Applied Physics
Doctoral Candidate

Alumni

Degree

Name

Current position

PhD(2018)

Rui Guo

Ajat

PhD(2018)

Tuomas Vanhala

Ludwig Maximilian University of Munich

PhD(2018)

Heikki Rekola

Tampere University of Technology

PhD(2017)

Anne-Maria Visuri

University of Geneva

PhD(2015)

Elmer Doggen

Karlsruhe Institute of Technology (CNRS, University of Toulouse)

PhD(2014)

Miikka Heikkinen

Accenture

PhD(2014)

Anna Korolyuk

Sanoma Oy

PhD(2013)

Antti-Pekka Eskelinen

Murata Electronics

PhD(2011)

Jussi Kajala

3DBear (Tekes, Spinverse)

PhD(2010)

Mikko Leskinen

Biit Oy

PhD(2009)

Marcus Rinkiö

Murata Electronics

PhD(2009)

Tommi Hakala

University of Eastern Finland (Aalto University, Harvard University)

PhD(2009)

Anton Kuzyk

Aalto University (Max Plank Institute for Intelligent Systems, Stuttgart; Technische Universität München)

PhD(2008)

Timo Koponen

Varian Medical Systems

PhD(2006)

Jami Kinnunen

Aalto University (JILA, Boulder)

PhD(2006)

Sampo Tuukkanen

Tampere University of Technology

PhD(2005)

Pasi Kivinen

Murata Electronics

PhD(2005)

Anu Huttunen

Nokia Research Center

PhD(2003)

Mirta Rodriguez

IRIS Research / Engineering / Technology (Instituto de Estructura de la Materia, Madrid; ICFO Barcelona; University of Oxford)

Postdoc

Long Liang

Aalto University

Postdoc

Marek Tylutki

Warsaw University of Technology

Postdoc

Jildou Baarsma

ASML Semiconductors

Postdoc

Arya Dhar

Göethe-Universität Frankfurt

Postdoc

Mikko Huttunen

University of Ottawa

Postdoc

Stéphane Derom

Universite de Bourgogne

Postdoc

Shaoyu Yin

Zhejiang University of Technology (ZJUT) (University of Birmingham)

Postdoc

Lei Shi

Fudan University, China

Postdoc

Robert Moerland

TU Delft, The Netherlands

Postdoc

Dong-Hee Kim

Gwangju Institute of Science and Technology (GIST), Korea

Postdoc

Alexander Itin

Universität Hamburg

Postdoc

Francesco Massel

University of Southeast Norway (University of Jyväskylä, University of Helsinki)

Postdoc

Andreas Johansson

University of Jyväskylä

Postdoc

Reza Bakhtiari

Universität Hamburg (Göethe-Universität Frankfurt)

Postdoc

Lars Melwyn Jensen

University of Copenhagen

Postdoc

Jani Martikainen

Aalto University (Nordic Institute for Theoretical Physics (NORDITA))

Postdoc

Vesa Ruuska

Postdoc

Jarmo Vanhanen

Lemi School

Senior researcher

Jussi Toppari

University of Jyväskylä

MSc(2013)

Miika Mäkelä

SSF - Space Systems Finland

MSc(2013)

Antti Ranni

Lund University

MSc(2013)

Juha Kreula

Boston Consulting (University of Oxford)

MSc(2012)

Joel Lehikoinen

Kaiku Health

MSc(2010)

Olli Nummi

Fortum Nuclear Services

MSc(2009)

Kimmo Laitinen

University of Eastern Finland

MSc(2008)

Ville Kotimäki

JAMK University of Applied Sciences

MSc(2007)

Joni Pasanen

University of Jyväskylä

MSc(2007)

Veikko Linko

Aalto University (Technische Universität München)

MSc(2007)

Marina Timmermans (Zavodchikova)

Imec, Belgium (Aalto University)

MSc(2006)

Heli Lehtivuori

University of Jyväskylä (Tampere University of Technology)

MSc(2006)

Lasse Hirviniemi

 

MSc(2005)

Tomi Paananen

Heinrich Heine University of Düsseldorf

MSc(2005)

Mikko Laitinen

University of Jyväskylä

MSc(2004)

Jukka Elfström

Moventas Wind

MSc(2003)

Esa Tarkiainen

Enermet

MSc(2002)

Arto Javanainen

University of Jyväskylä

MSc(2002)

Ossi Partanen

Nordic Semiconductor